TYCO INTERNATIONAL LTD /BER/
S-3/A, 1997-08-21
GENERAL INDUSTRIAL MACHINERY & EQUIPMENT, NEC
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As filed with the Securities and Exchange Commission on August 21, 1997
    
                                                    Registration No. 333-33779
================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                 ---------------


                               AMENDMENT NO. 1 TO

                                    Form S-3
                             Registration Statement
                                      Under
                           The Securities Act of 1933
                                 ---------------

                             TYCO INTERNATIONAL LTD.
             (Exact name of registrant as specified in its charter)

                                 ---------------

                  BERMUDA                               NOT APPLICABLE
- --------------------------------------------------------------------------------
       (State or other jurisdiction                    (IRS Employer
      of incorporation or organization)               Identification No.)

                                   CEDAR HOUSE
                                 41 CEDAR AVENUE
                              HAMILTON HM12 BERMUDA
                                 (441) 292-2033
          (Address, including zip code, and telephone number, including
             area code, of registrant's principal executive offices)

                                 MARK H. SWARTZ
                                 VICE PRESIDENT
                             TYCO INTERNATIONAL LTD.
                                  ONE TYCO PARK
                           EXETER, NEW HAMPSHIRE 03833
                                 (603) 778-9700
            (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)

*Tyco  International  Ltd.  maintains its registered  offices at Cedar House, 41
Cedar Avenue, Hamilton HM12 Bermuda. The executive office of the subsidiary that
supervises  the activities of the  subsidiaries  of Tyco  International  Ltd. in
North  America is located at One Tyco Park,  Exeter,  New Hampshire  03833.  The
telephone number there is (603) 778-9700.

                               -----------------

                                   COPIES TO:

     JOSHUA M. BERMAN, ESQ.                       NEIL ANDERSON, ESQ.
     KRAMER, LEVIN, NAFTALIS & FRANKEL            SULLIVAN & CROMWELL
     919 THIRD AVENUE                             125 BROAD STREET
     NEW YORK, NEW YORK 10022                     NEW YORK, NEW YORK 10004


<PAGE>

                                -----------------

     Approximate date of commencement of proposed sale to the public:  From time
to time after the effective date of this Registration Statement.

     If the only securities being registered on this form are being offered pur-
suant to dividend or interest  reinvestment plans, check the following box. [ ]

     If any of the securities being registered on this form are to be offered on
a delayed or continuous  basis  pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. [x]

     If this Form is filed to  register  additional  securities  for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration  statement  number  of the  earlier
effective registration statement for the same offering. [ ]


     If this Form is a  post-effective  amendment  filed pursuant to Rule 462(c)
under the  Securities  Act,  check the following box and list the Securities Act
registration  statement number of the earlier effective  registration  statement
for the same offering. [ ]

     If delivery of the  prospectus is expected to be made pursuant to Rule 434,
please check the following box. [ ]

         THE REGISTRANT HEREBY AMENDS THIS  REGISTRATION  STATEMENT ON SUCH DATE
OR DATES AS MAY BE NECESSARY TO DELAY ITS  EFFECTIVE  DATE UNTIL THE  REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY  STATES THAT THIS REGISTRATION
STATEMENT SHALL  THEREAFTER  BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES  ACT OF 1933, AS AMENDED,  OR UNTIL THIS  REGISTRATION  STATEMENT
SHALL BECOME  EFFECTIVE ON SUCH DATE AS THE COMMISSION,  ACTING PURSUANT TO SAID
SECTION 8(A), MAY DETERMINE.

                                      - 2 -


<PAGE>

       

PROSPECTUS

                                          12,517,072 Common Shares
                                              21,910 A Warrants
                                              13,657 B Warrants

                             TYCO INTERNATIONAL LTD.

         This  Prospectus  relates to the offering of  12,517,072  common shares
(the  "Shares"),  par  value  $.20 per  share  (the  "Common  Shares"),  of Tyco
International  Ltd.,  a Bermuda  company  ("Tyco"  or the  "Company"),  21,910 A
Warrants  (the "A  Warrants")  and  13,657 B  Warrants  (the "B  Warrants",  and
together with the A Warrants,  the  "Warrants";  the Warrants  together with the
Shares,  the "Securities") to acquire Common Shares, by certain security holders
of the Company.  92,108 of the Shares (the "Warrant  Shares")  constitute Common
Shares  issuable  upon exercise of the  Warrants.  The Warrants were  originally
issued by Kendall International, Inc. ("Kendall") to certain security holders of
the Company (the "Kendall Selling  Securityholders")  and assumed by the Company
pursuant to the terms of the merger of Kendall with a subsidiary  of the Company
on October 19, 1994.

         12,424,964  of the Shares  may be  offered  from time to time by Westar
Capital, Inc. (the "Westar Selling  Shareholder",  and together with the Kendall
Selling Securityholders, the "Selling Shareholders") in one or more underwritten
public  offerings at prevailing  market prices or in privately  negotiated block
trades,  subject to certain limitations.  The Warrants and/or the Warrant Shares
may be offered from time to time by the Kendall Selling  Securityholders through
ordinary  brokerage  transactions on the New York Stock Exchange (Warrant Shares
only), in the over-the-counter  market, in privately negotiated  transactions or
otherwise,  at market  prices  prevailing  at the time of sale or at  negotiated
prices.  The  Company  will not  receive  any of the  proceeds  from the sale of
Securities by the Selling  Shareholders.  The Company will pay certain  expenses
related to the offering of the  Securities,  estimated at $185,000.  The Company
may receive $5.97 per Common Share in connection with the exercise of A Warrants
(or up to an  aggregate of  $338,737)  and $7.96 per Common Share in  connection
with the  exercise  of B  Warrants  (or up to an  aggregate  of  $281,529).  See
"Selling Shareholders."

         The resale of the Securities by the Selling  Shareholders is subject to
prospectus  delivery and other  requirements  of the  Securities Act of 1933, as
amended   ("Securities  Act").  The  Selling  Shareholders  and  any  agents  or
broker-dealers that participate with the Selling Shareholders in the sale of the
Securities  may  be  deemed   "underwriters"   under  the  Securities  Act,  and
commissions  received by them and any profit on the resale of the Securities may
be deemed to be underwriting commissions or discounts under the Securities Act.


         THESE   SECURITIES  HAVE  NOT  BEEN  APPROVED  OR  DISAPPROVED  BY  THE
SECURITIES AND EXCHANGE  COMMISSION OR ANY STATE  SECURITIES  COMMISSION NOR HAS
THE COMMISSION OR ANY STATE  SECURITIES  COMMISSION  PASSED UPON THE ACCURACY OR
ADEQUACY OF THIS PROSPECTUS.  ANY  REPRESENTATION  TO THE CONTRARY IS A CRIMINAL
OFFENSE.


                  THE DATE OF THIS PROSPECTUS IS AUGUST , 1997


<PAGE>

                              AVAILABLE INFORMATION

         The  Company  is  subject  to  the  informational  requirements  of the
Securities  Exchange  Act of 1934,  as  amended  (the  "Exchange  Act"),  and in
accordance therewith files reports,  proxy statements and other information with
the Securities and Exchange Commission (the  "Commission"),  all of which may be
inspected  and  copied at the  public  reference  facilities  maintained  by the
Commission at Room 1024, 450 Fifth Street,  N.W.,  Judiciary Plaza,  Washington,
D.C. 20549,  and at the following  Regional  Offices of the Commission:  Chicago
Regional  Office,  Suite 1400,  Northwestern  Atrium  Center,  500 West  Madison
Street, Chicago, Illinois 60661; and New York Regional Office, Seven World Trade
Center,  13th Floor,  New York,  New York 10048.  Copies of such material can be
obtained at prescribed rates from the Public Reference Section of the Commission
at 450  Fifth  Street,  N.W.,  Judiciary  Plaza,  Washington,  D.C.  20549.  The
Commission  maintains  a site on the World  Wide  Web,  and the  reports,  proxy
statements and other information filed by the Company with the Commission may be
accessed electronically on the Web at http://www.sec.gov. Such material can also
be inspected at the offices of the New York Stock Exchange, 20 Broad Street, New
York, New York 10005, where the Common Shares are listed.

         This Prospectus  constitutes  part of a Registration  Statement on Form
S-3 (the  "Registration  Statement")  filed by the Company  with the  Commission
under the  Securities  Act of 1933,  as amended  (the  "Securities  Act").  This
Prospectus  omits  certain  of the  information  contained  in the  Registration
Statement  in  accordance  with the rules  and  regulations  of the  Commission.
Reference is hereby made to the Registration  Statement and related exhibits for
further  information with respect to the Company and the Securities.  Statements
contained  herein  concerning the provisions of any document are not necessarily
complete and, in each instance,  where a copy of such document has been filed as
an exhibit to the  Registration  Statement or otherwise  has been filed with the
Commission,  reference is made to the copy of the applicable  document so filed.
Each such statement is qualified in its entirety by such reference.


                INCORPORATION OF CERTAIN INFORMATION BY REFERENCE

         The following documents,  which have been filed by the Company with the
Commission pursuant to the Exchange Act, are hereby incorporated by reference in
this Prospectus:

         The  Company's  Annual  Report on Form 10-K for the  fiscal  year ended
December 31, 1996.

         The  Company's  Quarterly  Reports on Form 10-Q for the quarters  ended
March 31, 1997 and June 30, 1997.

         The Company's Current Reports on Form 8-K dated March 25, 1997 and July
10, 1997.

         In addition,  the  following  documents,  which have been filed by Tyco
International   (US)  Inc.,   a   Massachusetts   corporation   (formerly   Tyco
International  Ltd.;  "Old Tyco") with the  Commission  pursuant to the Exchange
Act, are hereby incorporated by reference in this Prospectus:

         Old Tyco's  Annual  Report on Form 10-K for the fiscal  year ended June
30, 1996.

                                      - 2 -


<PAGE>

         Old  Tyco's  Quarterly  Reports  on Form  10-Q for the  quarters  ended
September 30, 1996, December 31, 1996 and March 31, 1997.

         Old Tyco's Current Reports on Form 8-K dated October 29, 1996, March 4,
1997, March 25, 1997 and March 28, 1997.

         All  documents  filed by the Company  with the  Commission  pursuant to
Sections  13(a),  13(c),  14 or 15(d) of the Exchange Act after the date of this
Prospectus  and prior to the  termination  of the  offering  of the Shares  made
hereby shall be deemed to be incorporated by reference into this Prospectus from
the date of filing of such  documents.  Any  statement  contained  in a document
incorporated or deemed to be incorporated by reference herein shall be deemed to
be modified or superseded  for purposes of this  Prospectus to the extent that a
statement  contained  herein or in any other  subsequently  filed document which
also  is or is  deemed  to be  incorporated  by  reference  herein  modifies  or
supersedes such statement.  Any statement so modified or superseded shall not be
deemed,  except as so  modified  or  superseded,  to  constitute  a part of this
Prospectus.

         The Company will provide  without  charge to each person to whom a copy
of this Prospectus is delivered,  including any beneficial  owner of Securities,
upon the written or oral  request of any such  person,  a copy of any and all of
the documents that have been or may be  incorporated  by reference  herein other
than  exhibits  to  such  documents   (unless  such  exhibits  are  specifically
incorporated by reference into such documents). Such requests should be directed
to David Brownell,  c/o Tyco International (US) Inc., One Tyco Park, Exeter, New
Hampshire 03833 (telephone: (603) 778-9700).


                                      - 3 -


<PAGE>

                                   THE COMPANY


         Tyco  International  Ltd., a Bermuda company,  is the continuing public
company  resulting from the business  combination  (the "ADT Merger") on July 2,
1997 of Tyco International  Ltd., a Massachusetts  corporation ("Old Tyco"), and
ADT Limited, a Bermuda company ("ADT").  In the ADT Merger, Old Tyco merged with
a subsidiary of ADT, and ADT changed its name to Tyco International Ltd.

         Tyco is the largest  contractor  in the world for design,  installation
and  servicing  of fire  protection  systems and is a leading  manufacturer  and
distributor of fire detection and fire  suppression  products.  Tyco is also the
largest provider of electronic security services in North America and the United
Kingdom.  These  services  include  the  sale,   installation,   monitoring  and
maintenance of electronic security devices and systems for intrusion  detection,
surveillance and access control.  Tyco manufactures and distributes flow control
products,  disposable medical supplies and other specialty products,  electrical
and electronic  components and underwater  telecommunication  systems. Tyco also
operates a network of vehicle auction centers in the United States.

         Tyco's strategy is to be a low-cost, high quality producer and provider
in each of its  markets.  It promotes  its  leadership  position by investing in
existing  businesses,   developing  new  markets  and  acquiring   complementary
businesses and products.  Combining the strengths of its existing operations and
its  business  acquisitions,  Tyco seeks to enhance  shareholder  value  through
increased earnings per share and strong cash flows.

         The Company is a Bermuda company. Its registered offices are located at
Cedar House, 41 Cedar Avenue, Hamilton HM12 Bermuda, and its telephone number is
(441)  292-2033.  The executive  office of the  subsidiary  that  supervises the
activities of the  subsidiaries of Tyco  International  Ltd. in North America is
located at One Tyco Park,  Exeter, New Hampshire 03833, and its telephone number
is (603) 778-9700.


                              CURRENT DEVELOPMENTS

PROPOSED TRANSACTIONS

         On May 12, 1997,  Old Tyco entered into a definitive  merger  agreement
for the  acquisition  of INBRAND  Corporation  ("INBRAND")  in a stock for stock
transaction (the "INBRAND  Transaction")  valued at approximately  $410 million.
INBRAND,  with annual revenues of approximately  $240 million,  is a producer of
adult incontinence products, feminine hygiene products and baby diapers. INBRAND
products  are sold to the  clinical  and  retail  markets in North  America  and
Europe. In the INBRAND Transaction,  which will be accounted for as a pooling of
interests,  INBRAND  shareholders  will  receive 0.43 of a Common Share for each
share of INBRAND  common stock  outstanding.  As of July 11,  1997,  INBRAND had
11,772,523  shares of common  stock  outstanding.  The  INBRAND  Transaction  is
contingent upon approval by the INBRAND  shareholders at a meeting scheduled for
August 27, 1997 and other customary conditions.

         On May 20, 1997,  Old Tyco entered into a definitive  merger  agreement
for the acquisition of Keystone International,  Inc. ("Keystone") in a stock for
stock  transaction (the "Keystone  Transaction")  valued at  approximately  $1.2
billion. Keystone, with annual revenues of approximately $700 million,


                                      - 4 -


<PAGE>

designs,  manufactures  and markets on a  worldwide  basis,  industrial  valves,
actuators and accessories  used to control the flow of liquids,  gases and solid
materials.  Keystone  products  are  sold to the food and  beverage,  water  and
sewage, petroleum production and refining, natural gas, chemical power, and pulp
and paper industries.  In the Keystone Transaction,  which will be accounted for
as a pooling of interests,  Keystone  shareholders will receive Common Shares in
exchange  for their shares of Keystone  common  stock.  The exchange  ratio will
depend upon the average  daily  trading  price for Common Shares on the New York
Stock  Exchange  for the ten trading  days ending five trading days prior to the
meeting of  Keystone  shareholders  to vote on the  transaction.  For an average
daily  trading  price of between  $57.21 and $68.29 the exchange  ratio would be
0.54183 of a Common Share for each share of Keystone  common stock  outstanding.
The exchange  ratio will be higher or lower for an average  daily  trading price
below or above this range. As of August 6, 1997,  Keystone had 35,798,296 shares
of common  stock  outstanding.  The  Keystone  Transaction  is  contingent  upon
approval by the Keystone shareholders at a meeting scheduled for August 28, 1997
and other  customary  conditions.  The  Antitrust  Division of the United States
Department of Justice (the  "Antitrust  Division") has raised  certain  concerns
regarding the Keystone  Transaction that relate to certain specific flow control
products of Tyco and Keystone.  Such products  accounted for less than 2% of the
total  revenues of Keystone in it most recent fiscal year.  Tyco and Keystone do
not intend to consummate the Keystone  Transaction unless and until the concerns
of the Antitrust Division have been resolved.

         The Company reviews acquisition opportunities in the ordinary course of
its  business,  some of which may be  material  and some of which are  currently
under investigation, discussion or negotiation.


OPERATING RESULTS OF OLD TYCO FOR THE FISCAL YEAR ENDED JUNE 30, 1997

         The Company has  announced  results of  operations  of Old Tyco for the
fiscal year ended June 30, 1997  ("fiscal  1997").  Net income  increased 35% to
$419.0 million, or $2.61 per share, for fiscal 1997, compared to $310.1 million,
or $2.03 per share for the  fiscal  year ended June 30,  1996  ("fiscal  1996").
Sales  increased  30% to $6.6 billion in fiscal 1997 from $5.1 billion in fiscal
1996.  The  increases   reflect  internal  growth  as  well  as  growth  through
acquisitions.  The internal growth was enhanced by continued worldwide expansion
of products and services coupled with productivity  enhancements  which improved
profit  margins.  Earnings  of  the  Disposable  and  Specialty  Products  group
increased 25% to $364.4  million in fiscal 1997,  compared to $291.7  million in
fiscal  1996.  Earnings of the Fire  Protection  group  increased  55% to $198.9
million  in fiscal  1997,  compared  to $128.1  million  in 1996.  The  increase
reflects improved margins in all geographic areas,  particularly  North America.
Earnings of the Flow Control  group  increased  37% to $156.3  million in fiscal
1997,  compared to $114.1 million in fiscal 1996. The increase  reflects  higher
earnings at each of the group's operating units, as well as recent acquisitions.
Earnings of the  Electrical  and Electronic  Components  group  increased 24% to
$109.3  million in fiscal 1997,  compared to $88.5  million in fiscal 1996.  The
increase  reflects higher earnings at each of the group's  operating  units. The
earnings of the four business groups set forth above are stated before deduction
for general corporate expenses, interest expense and taxes.


                                      - 5 -


<PAGE>

         The  following  table  sets  forth the  announced  summary  results  of
operations of Old Tyco for fiscal 1997 compared to fiscal 1996.

<TABLE>
<CAPTION>


                                                                                      For the year ended
                                                                             June 30, 1997             June 30, 1996
                                                                             -------------             -------------
                                                                                (In thousands except per share
                                                                                           amounts)

<S>                                                                               <C>                     <C>
Sales................................................................             $6,597,629              $5,089,828
                                                                                  ==========              ==========
Income before income taxes ..........................................
                                                                                 $   687,889             $   523,897
Income taxes.........................................................               (268,887)               (213,750)
                                                                                  -----------             -----------
Net Income...........................................................            $   419,002             $   310,147
                                                                                 ===========             ===========

Earnings Per Share...................................................                  $2.61                   $2.03
                                                                                       =====                   =====
Common equivalent shares.............................................                160,268                 152,862
                                                                                   =========              ==========

</TABLE>


         For information on the operating  results of ADT Limited (since renamed
Tyco  International  Ltd.) for the quarter and six months  ended June 30,  1997,
please  refer to the  Company's  Quarterly  Report on Form 10-Q for the  quarter
ended June 30, 1997.


                                 USE OF PROCEEDS

         All of the  Securities  offered hereby are being offered by the Selling
Shareholders.  The Company will not receive any of the proceeds from the sale of
the Securities  offered hereby. The Company may receive aggregate proceeds of up
to $338,729 (or $5.97 per share) from the  exercise of A Warrants and  aggregate
proceeds of up to $281,607  (or $7.96 per share) from the exercise of B Warrants
that are either  offered  pursuant to this  Prospectus or whose Shares  issuable
upon exercise thereof are so offered. The Company will use any proceeds from the
exercise of A Warrants and B Warrants for working capital and general  corporate
purposes. See "Selling Shareholders."


                              SELLING SHAREHOLDERS

WESTAR SELLING SHAREHOLDER

         As used in this section,  the term "Selling  Shareholder" refers to the
Westar Selling Shareholder.

       GENERAL

         The  Selling  Shareholder  is  a  wholly-owned  subsidiary  of  Western
Resources,  Inc. ("Western").  Western is an investor-owned holding company that
is engaged principally in the production, purchase,  transmission,  distribution
and sale of  electricity  and the delivery  and sale of natural  gas.  Western's
non-utility  subsidiaries  market natural gas primarily to large  commercial and
industrial customers, provide


                                      - 6 -


<PAGE>

electronic  monitoring  security  services,  and  provide  other  energy-related
products and  services.  On February 7, 1997,  Kansas City Power & Light Company
("KCPL") and Western entered into an agreement whereby KCPL would be merged with
and into Western.

         The Selling  Shareholder  initially  purchased Common Shares in January
and March 1996 from Laidlaw  Inc.,  a  corporation  continued  under the laws of
Canada,  and has from time to time  purchased  and sold  Common  Shares  and the
Company's Liquid Yield Option NotesTM ("LYONs")  exchangeable into Common Shares
in the open  market.  Neither  the Selling  Shareholder  nor Western has had any
representative on the Board of Directors or in the management of the Company. As
of the  date of this  Prospectus,  the  Selling  Shareholder  beneficially  owns
12,424,964  Shares,  or approximately 5% of the outstanding  Common Shares.  The
number of Shares  sold and the timing of any such  sales  will  depend on market
conditions and other factors.  In the event that Western or any other subsidiary
of Western  acquires  any or all of the  Shares  from the  Selling  Shareholder,
Western or such  subsidiary may be substituted for the Selling  Shareholder,  in
whole or in part, as a selling shareholder under this Prospectus.

       THE SETTLEMENT AGREEMENT

         In December 1996,  Western announced its intention to offer to exchange
cash and  Western  stock for the  outstanding  common  shares of the Company not
already  owned by the Selling  Shareholder  (the "Western  Offer").  At the same
time,  Western filed a notice with the Company  requisitioning a special general
meeting of ADT's shareholders to consider proposals (the "Western Proposals") to
remove the then current members of ADT's board,  reduce the size of the board to
two and elect two officers of Western as  directors  of ADT. In March 1997,  ADT
entered into an Agreement  and Plan of Merger with Old Tyco,  providing  for the
merger of a subsidiary of ADT with Old Tyco. Western announced the withdrawal of
the Western Offer on July 2, 1997, the date the ADT Merger was consummated.  The
Western  Proposals were voted down at a special  general meeting of shareholders
of the Company on July 8, 1997,  at which the Common  Shares held by the Selling
Shareholder were not represented.

         In connection with the Western Offer, the Selling  Shareholder filed an
action against ADT in U.S.  District Court for the Southern  District of Florida
alleging breaches of duties of ADT's directors to its shareholders.  The Selling
Shareholder  also filed a petition with the Supreme Court of Bermuda,  which, as
amended,  sought a payment  in cash for the fair  value of its  Shares.  Certain
subsidiaries  of ADT which hold shares in Western and KCPL filed actions against
Western in the District Court of Shawnee County, Kansas, and against KCPL in the
Circuit  Court of Jackson  County,  Missouri,  seeking  exercise of  shareholder
rights to inspect books and records of Western and KCPL, respectively.

         On August 14, 1997,  Western,  the Selling  Shareholder and the Company
entered into a Settlement  Agreement,  dated as of July 16, 1997,  providing for
the  withdrawal or  discontinuance  of all  outstanding  litigation  between the
parties,  including  the  litigation  involving  KCPL,  mutual  releases and the
execution of the Western  Registration  Rights Agreement described below. A copy
of the Settlement Agreement is filed as an exhibit to the Registration Statement
and  reference  is  made to  such  agreement  for a  complete  statement  of its
provisions.

       WESTERN REGISTRATION RIGHTS AGREEMENT

         The Selling  Shareholder,  Western and the Company  have entered into a
Registration  Rights  Agreement,  dated as of  August  14,  1997  (the  "Western
Registration Rights Agreement").  The Shares offered pursuant to this Prospectus
have been  registered  under the  Securities  Act and are  being so  offered  in
accordance with the terms of the Western  Registration Rights Agreement.  A copy
of the Western


                                      - 7 -


<PAGE>

Registration  Rights  Agreement  is  filed  as an  exhibit  to the  Registration
Statement,   and  the  following   description  of  the  terms  of  the  Western
Registration Rights Agreement is qualified by reference to such agreement.

         General.  The Western  Registration  Rights Agreement  provides for the
registration of the Shares under the Registration  Statement,  which is a "shelf
registration statement" filed in accordance with the Securities Act. The Company
has  agreed  to use its  best  efforts  to  maintain  the  effectiveness  of the
Registration  Statement  until the  earlier of (i) the date that is  twenty-four
(24) months from the effective date of the Registration Statement;  and (ii) the
date when no more than 500,000 of the aggregate number of Registrable Securities
(as  defined   below)   initially   included  in  the   Registration   Statement
(appropriately  adjusted  for any stock  dividend,  stock split,  reverse  stock
split,  combination,  recapitalization,  reclassification,  exchange  or similar
transaction   with  respect  to  the  Common  Shares)   continue  to  constitute
Registrable Securities.  The Western Registration Rights Agreement also provides
for  certain  "piggyback  rights"  for  the  registration  and  distribution  of
Registrable   Securities.   Demand  and  piggyback   rights  under  the  Western
Registration  Rights  Agreement may be exercised by the Selling  Shareholder and
any other person that constitutes a Holder (as defined below).

         Definitions.  The following  definitions are used in the description of
the Western Registration Rights Agreement in this section:

         "Block  Trade"  means  the  disposition  at a  single  time in a single
transaction,  including  through one or more  placement  agents,  by one or more
Holders,  of  any  or  all  of  the  Registrable   Securities  to  one  or  more
Institutional  Investors.  "Institutional Investor" means any insurance company,
pension fund, mutual fund,  investment  company,  commercial bank, savings bank,
savings and loan association,  investment banking company,  trust company or any
finance or credit company, or any portfolio or investment fund managed by any of
the foregoing.

         "Exclusive  Period"  means  the  period  beginning  on the  date of the
Western  Registration Rights Agreement and ending on the later of (i) October 3,
1997  and (ii)  sixty  (60)  days  from the  date  that the  Shelf  Registration
Statement is first declared  effective by the SEC, not including any days during
which a Material Development Election (as defined) is in effect.

         "Holder" means any person that owns  Registrable  Securities,  provided
that no  person  other  than  Western,  the  Selling  Shareholder  and any other
wholly-owned, direct or indirect subsidiary of Western may be a Holder.

         "Registrable Securities",  as used in this section means (i) the Common
Shares  owned by the  Selling  Shareholder  as of the  date of the  Registration
Agreement; and (ii) any other securities issued or issuable as a result of or in
connection  with any  stock  dividend,  stock  split  or  reverse  stock  split,
combination,   recapitalization,   reclassification,  merger  or  consolidation,
exchange or distribution in respect of the securities  referred to in clause (i)
above; provided that any Registrable Security ceases to be such after either (x)
the later of (1) July 16, 1998 and (2) such time as such  security has become an
Unrestricted  Security,  or (y) such time as such security has been transferred,
with or without consideration, to any person other than a Holder.

         "Unrestricted  Securities" mean Common Shares that may be sold pursuant
to Rule 144(k) under the Securities  Act, or any similar  successor rule thereto
that may be promulgated by the Commission.


                                      - 8 -


<PAGE>

         "Western," as used in the Western Registration Rights Agreement,  means
Western Resources, Inc. and any successor corporation to Western Resources, Inc.
by  way  of  merger,   consolidation,   exchange  procedure  or  other  business
combination pursuant to which all of the shareholders of Western Resources, Inc.
immediately  prior  to  such  business   combination  (other  than  shareholders
exercising  statutory  appraisal  rights)  are  shareholders  of  the  successor
immediately following such combination.

         Demand  Rights.  Upon the written  request of one or more Holders,  the
Company  will   facilitate  an   underwritten   offering  of  Shares  under  the
Registration  Statement (a "Demand  Underwritten  Offering"),  provided that the
Company is not obligated to facilitate any Demand Underwritten Offering for less
than 500,000 Shares (appropriately adjusted for any stock dividend, stock split,
reverse stock split, combination, recapitalization,  reclassification,  exchange
or similar  transaction with respect to the Common Shares).  One or more Holders
may also effect a Block Trade under the Registration Statement, provided that no
Unrestricted  Securities  may be sold in a Block  Trade  under the  Registration
Statement.  The total number of Demand  Underwritten  Offerings and Block Trades
under the Registration Statement may not exceed three in the aggregate.

         Piggyback Rights of the Company in Demand Underwritten Offerings and of
the Holders in  Underwritten  Offerings of the Company for its Own Account.  The
following provisions apply only after the end of the Exclusive Period.

         If the  Holders  deliver a notice  of a  proposed  Demand  Underwritten
Offering, the Company, by notice to the Holders, may elect to participate in the
sale of Common Shares in such  underwritten  offering.  If the Company  delivers
such a notice, the Demand  Underwritten  Offering will be consummated as soon as
practicable  after the  earlier  to occur of (x) the time any  amendment  to the
Registration  Statement or any new Registration  Statement required for the sale
of Common Shares by the Company becomes  effective under the Securities Act, and
(y) thirty calendar days from the date of delivery by the Company to the Holders
of the notice of the Company's participation election.

         If the Company  proposes to file a registration  statement with respect
to an underwritten offering of Common Shares for its own account, the Company is
required to give the Holders notice of such registration.  The notice must offer
the Holders the  opportunity  to have any or all of the  Registrable  Securities
then  held  by  them  included  in  the  registration  statement.  If  any  such
registration is not a shelf  registration,  the Registrable  Securities that the
Holders elect to include will be offered in the underwritten  offering  together
with the offering of Common Shares by the Company. If any such registration is a
shelf  registration,   the  Registrable  Securities  will  be  included  in  the
registration  statement  only  for  distribution  in  an  underwritten  offering
together with an underwritten offering of Common Shares by the Company.

         If the Company  proposes to effect an  underwritten  offering of Common
Shares for its own account under a previously effective registration  statement,
the Company is required to give notice of such proposed offering to the Holders.
The notice  must offer the  Holders  the  opportunity  to have any or all of the
Registrable Securities then held by them included in such underwritten offering,
to the extent such Registrable Securities have previously been registered either
under the Registration  Statement or a registration  statement filed pursuant to
the prior paragraph.

         If  the  managing  underwriter  or  underwriters  of  any  underwritten
offering  referred  to in the prior  three  paragraphs  advises  the  Company in
writing that the total amount of Common  Shares of the Holders,  the Company and
any other  persons  intended  to be included  in such  underwritten  offering is
sufficiently large to materially  adversely affect the success of such offering,
then the amount of Common  Shares to be offered in such public  offering will be
allocated as follows:


                                      - 9 -


<PAGE>


                    (i)  first,  to the  Company,  in  the  amount  the  Company
               proposes  to offer,  up to an  amount  equal to  one-half  of the
               maximum  amount (the "Maximum  Amount") of Common Shares that the
               managing  underwriter or underwriters have advised can be sold in
               the underwritten offering;

                    (ii) next, to the Holders, in the amount the Holders propose
               to  offer,  up to an  amount  equal to  one-half  of the  Maximum
               Amount;

                    (iii)  next,  if  the  sum of the  Common  Shares  allocated
               pursuant  to clauses  (i) and (ii) above is less than the Maximum
               Amount,  to the  Company  or the  Holders,  whichever  shall have
               Common Shares proposed to be offered in the underwritten offering
               which have not been allocated under clauses (i) or (ii) above, up
               to an amount equal to the  difference  between the Maximum Amount
               and the amount of Common Shares  allocated  under clauses (i) and
               (ii) above; and

                    (iv)  thereafter,  if the sum of the Common Shares allocated
               pursuant  to clauses  (i),  (ii) and (iii) above is less than the
               Maximum  Amount,  to any other Person  entitled to participate in
               the  underwritten   offering,  up  to  an  amount  equal  to  the
               difference  between the  Maximum  Amount and the amount of Common
               Shares allocated under clauses (i), (ii) and (iii) above.

         Piggyback  Rights of the  Holders  in  Underwritten  Offerings  for the
Account  of  Third  Parties.  If the  Company  proposes  to file a  registration
statement with respect to the  underwritten  offering of any class of its equity
securities for the account of a holder of securities of the Company  pursuant to
registration  rights  granted by the Company (a "Requesting  Shareholder"),  the
Company  is  required  to give  written  notice of such  proposed  filing to the
Holders.  Such notice must offer to all Holders the  opportunity  to have any or
all of the  Registrable  Securities  held by them included in such  registration
statement,  provided  that if any  such  registration  is a shelf  registration,
Registrable  Securities  will be included  therein only for  distribution  in an
underwritten offering.

         If the managing  underwriter or underwriters  of any such  underwritten
offering  advises  the  Company  in  writing  that the  total  amount or kind of
securities  of the  Holders,  the Company and any other  persons  intended to be
included in such  underwritten  offering  is  sufficiently  large to  materially
adversely  affect  the  success  of such  offering,  then the  amount or kind of
securities  to be offered for the  accounts of Holders will be reduced pro rata,
together with the amount or kind of securities to be offered for the accounts of
any other persons exercising  piggyback rights, to the extent necessary,  before
the  securities  offered by the  Company or any  Requesting  Shareholder  are so
reduced.

         Hold-back  Election.  In the case of any  underwritten  offering by the
Company,  whether  for its  own  account  or for  the  account  of a  holder  of
securities  of the  Company  pursuant  to  registration  rights  granted  by the
Company,  the Holders  agree,  if and to the extent  requested in writing by the
managing  underwriter or underwriters  administering such offering (a "Hold-Back
Election"),  not to effect any public sale or  distribution of securities of the
Company,  except  as part of  such  underwritten  offering,  during  the  period
beginning seven days prior to the closing date of such underwritten offering and
during the period  ending on the earlier of (i) 45 days after such  closing date
and (ii) the date  such  sale or  distribution  is  permitted  by such  managing
underwriter  or  underwriters,  provided  that,  if  and  to  the  extent  it is
reasonable  to do so, the Company will request of the  managing  underwriter  or
underwriters  to permit such sale or  distribution  prior to the date  permitted
under  clause  (i) above.  These  hold-back  provisions  will cease to be of any
effect  following  the time  that  Western  and its  subsidiaries  hold,  in the
aggregate,


                                     - 10 -


<PAGE>

less than three percent 3% of the  outstanding  Common  Shares.  The Company has
agreed to be subject to similar hold-back  provisions with respect to any Demand
Underwritten Offering. Moreover, the Holders will not be subject to the forgoing
hold-back  provisions in respect of an underwritten  offering for the account of
any other holder of Common Shares that has not similarly agreed to be subject to
the  hold-back  provisions  set forth in this  paragraph  in respect of a Demand
Underwritten Offering for the benefit of the Holders.

         Material Development Election. The Company is entitled, for a period of
time not to exceed 30 consecutive days, to require that the Holders refrain from
effecting  any  distribution  of their  Registrable  Securities  pursuant to the
Registration  Statement if the chief executive officer of the Company determines
in his reasonable good faith judgment that, in accordance with his understanding
of the disclosure  requirements of applicable  securities law, such distribution
would require disclosure of any financing (other than an underwritten  secondary
offering   of  any   securities   of  the   Company),   acquisition,   corporate
reorganization or other transaction or development  involving the Company or any
subsidiary  of the Company that is or would be material to the Company and that,
in the reasonable good faith business judgment of such chief executive  officer,
such  disclosure  would not at that time be in the best interests of the Company
(a "Material Development Election").

         The Western Registration Rights Agreement provides that in no event may
the  restrictions  pursuant  to one or  more  Hold-Back  Elections  or  Material
Development Elections remain in effect for more than 75 days in the aggregate in
any calendar  year.  Also,  the  restrictions  pursuant to two or more  Material
Development  Elections  may not  remain in  effect  for more than 45 days in the
aggregate in calendar year 1997.

         Exclusive Period. The Company has agreed not to effect any underwritten
offering  of Common  Shares  during  the  Exclusive  Period,  other  than (x) an
underwritten offering of Registrable Securities and (y) an underwritten offering
of  Common  Shares  for  the  benefit  of  a  shareholder  in   satisfaction  of
registration rights granted by the Company to such shareholder prior to the date
of the Western Registration Rights Agreement. The Company has also agreed that a
Hold-Back Election may not be effected during the Exclusive Period.

         Expenses.  Except as otherwise set forth below, each of the Company, on
the one  hand,  and the  Holders,  on the  other,  will  bear  it own  costs  in
connection with the Western  Registration  Rights  Agreement,  including without
limitation, internal expenses, fees and disbursements of its outside counsel and
its independent public accountants and fees and expenses of any other experts or
advisors.  The  Company is  required  to pay all  printing  expenses  (including
expenses of  printing  and  disseminating  Prospectuses  or any other  necessary
documentation). The Holders are required to pay all registration and filing fees
and fees and expenses of compliance  with state  securities or blue sky laws and
all expenses incurred by the Company in connection with the participation in any
"road show" by members of the Company's management up to $100,000.

         Underwriters.  The Western  Registration Rights Agreement provides that
each  underwriter  for  any  Demand  Underwritten   Offering  will  be  mutually
acceptable to the Company and the Holders. The Company has no right to select or
approve any  investment  banking firm to act on behalf of the Holders in respect
of any Block Trade.

         Other Provisions.  The Western  Registration  Rights Agreement contains
other  provisions   typically  found  in  agreements  of  this  type,  including
provisions with respect to indemnification and contribution.


                                     - 11 -


<PAGE>


THE KENDALL SELLING SECURITYHOLDERs

         As used in this section, the term "Selling  Securityholders"  refers to
the Kendall Selling Securityholders.

       GENERAL

         The  Selling  Securityholders  were  former  holders of A Warrants or B
Warrants  to acquire  common  stock of  Kendall  that  received A Warrants  or B
Warrants to acquire  Common Shares as a result of the merger of Kendall with Old
Tyco on October 19, 1994 (the "Kendall  Merger") and the  subsequent ADT Merger.
Of the Shares being offered hereby,  56,740 shares are issuable  pursuant to the
exercise of A Warrants and 35,368  shares are issuable  pursuant to the exercise
of B Warrants. An aggregate of 21,910 A Warrants and 13,657 B Warrants,  each of
which is  exercisable  for 2.5897 Common Shares are also being  registered.  The
identities   and  certain  other   information   with  respect  to  the  Selling
Securityholders will be set forth in a Prospectus Supplement.

       KENDALL REGISTRATION RIGHTS AGREEMENT

         The Company has agreed  generally to assume and perform the obligations
of Kendall under the Registration Rights Agreement, dated as of July 7, 1992, as
amended (the "Kendall Registration Rights Agreement"), among Kendall and certain
former  institutional   securityholders  of  Kendall  (each,  an  "Institutional
Investor")  and certain  individual  securityholders  of Kendall  (collectively,
together with certain other former  securityholders  of Kendall  entitled to the
benefits,  and bound by the terms of the Kendall  Registration Rights Agreement,
the "Holders",  which term includes the Selling Securityholders).  The following
summary of certain terms of the Kendall  Registration  Rights Agreement does not
purport to be complete and is subject in all respects to the  provisions  of the
Kendall Registration Rights Agreement, a copy of which is filed as an exhibit to
the  Registration  Statement,  to which  reference is hereby made for a complete
statement of such provisions.

         Demand  Registration.  The Kendall  Registration Rights Agreement gives
the right to each  Institutional  Investor  to demand  that the  Company  file a
registration  statement  under  the  Securities  Act  covering  the  Registrable
Securities requested by such Institutional  Investor and to use its best efforts
to cause  such  registration  statement  to  become  effective.  If the  Company
receives a demand for registration as provided in the previous  sentence,  it is
required to give notice of such  demand to all Holders  and,  subject to certain
limitations,  to use its best efforts to include in the  registration  statement
Registrable Securities which any other Holder has requested,  within 15 business
days after the date of such notice, to be included.  Each Institutional Investor
is entitled  to make one demand for  registration.  However,  the Company is not
required to file a  registration  statement  unless the Holders  have  requested
registration  of a prescribed  minimum  number of shares of Common  Shares.  The
Company is entitled to postpone such a  registration  statement for a reasonable
period not to exceed 180 days in certain  circumstances.  The  Company  does not
believe  that any of the  Institutional  Investors  retain  the  right to demand
registration.

         As used in this  section,  Registrable  Securities  include  the Common
Shares  received  as a result of the  Kendall  Merger  (and the  subsequent  ADT
Merger) in exchange for shares of Kendall common stock that prior to the Kendall
Merger  were  entitled to  registration  rights  under the Kendall  Registration
Rights  Agreement;  Warrants received as a result of the Kendall Merger (and the
subsequent ADT


                                     - 12 -


<PAGE>

Merger) in exchange for warrants to acquire  shares of Kendall common stock that
prior to the Kendall  Merger were entitled to  registration  rights,  and Common
Shares  issuable upon  exercise of such  Warrants;  Common Shares  issuable upon
exercise of  Reallocation  Rights (as  defined);  and  securities  issuable with
respect to such Common  Shares or  Warrants by way of a stock  dividend or stock
split or in connection with a combination of shares,  recapitalization,  merger,
consolidation,  reorganization or otherwise.  Securities cease to be Registrable
Securities when disposed of pursuant to an effective  registration  statement or
sold  or  distributed  to the  public  in  reliance  on an  exemption  from  the
registration requirements of the Securities Act.

         Piggyback  Registration.  The  Kendall  Registration  Rights  Agreement
provides that if the Company proposes to register any of its equity  securities,
whether or not for its own account (subject to certain exceptions),  the Company
will give notice of such  registration  to the  Holders  together  with  certain
information  concerning the proposed  offering.  Upon the written request of any
Holder delivered within 15 business days of the notice, the Company will use its
best  efforts to effect the  registration  under the  Securities  Act of all the
Registrable  Securities  that the  Holder  requests  the  Company  to  register,
provided  that the  Company  will be  permitted  not to register or to delay the
registration of such Registrable  Securities if it determines not to register or
to delay the registration of the securities otherwise intended to be registered.

         If the  registration  involves an  underwritten  offering,  all Holders
requesting  inclusion in the underwritten  offering must sell their  Registrable
Securities to the  underwriters on the same terms and conditions as apply to the
Company or the other selling securityholders participating in such registration.
If  the  registration   involves  an  underwritten  offering  and  the  managing
underwriter  advises the Company that, in its opinion,  the number of securities
proposed to be registered must be limited due to market conditions,  the Company
will include in such  registration  first,  the number of securities the Company
proposes  to sell,  and  second,  the number of  Registrable  Securities  of the
Holders and  securities  of other  persons  ("Other  Persons")  requested  to be
included in such registration that, in the opinion of such managing underwriter,
can be sold,  allocated  pro rata among all such  requesting  Holders  and Other
Persons  on  the  basis  of  the  relative  number  of  securities  as to  which
registration has been requested by each such Holder and Other Person.

         The Company may not enter into any agreement that will grant any person
piggyback  rights with  respect to any demand  registration  of the Holders that
fails to give  effect or  diminishes  the  rights of  holders  with  respect  to
piggyback  registration as provided in the Kendall Registration Rights Agreement
or that  grants  registration  rights to any  person and does not  require  such
person  expressly  to  recognize  the rights of the Holders  under the  holdback
provisions referred to below.

         Holdback Agreements. The Kendall Registration Rights Agreement provides
that, if any registration of Common Shares constituting  Registrable  Securities
is made in connection with an underwritten offering, the Holders will not effect
any sale or distribution,  including in a private  placement or pursuant to Rule
144 under the  Securities  Act, of any Common Shares during the seven days prior
to  and  during  the  90-day  period   following  the  effective  date  of  such
registration statement or such shorter period as the managing underwriter of the
relevant underwritten offering agrees to.

         If any  registration  of  Registrable  Securities is made in connection
with an  underwritten  offering,  the Company  agrees,  and will use  reasonable
efforts to cause other  persons  holding 5% or more of the Common  Shares (other
than institutional investment managers) to agree, not to effect any sale or


                                     - 13 -


<PAGE>

distribution  of any of  the  Company's  equity  securities  or of any  security
convertible  into or  exchangeable or exercisable for any equity security of the
Company  during the period  beginning  seven days prior to the effective date of
such registration statement and ending on the earlier of (1) 180 days after such
effective  date,  and (2) 90 days after such  effective  date,  if the  managing
underwriter in such  underwritten  offering permits such sale or distribution as
not materially adversely affecting the offering. The Kendall Registration Rights
Agreement provides that the Holders  participating in any such offering will use
their   reasonable   efforts  to  obtain  such   permission  from  the  managing
underwriter.

         Certain  Other  Provisions.  All  expenses  incident  to the  Company's
performance  of its  registration  obligations  under the  Kendall  Registration
Rights Agreement,  including filing fees and the reasonable fees and expenses of
one counsel retained by the Holders of a majority of the Registrable  Securities
being  registered,  will be paid by the Company.  The foregoing does not include
underwriting commissions or discounts or transfer taxes, if any, attributable to
the sale of Registrable Securities by the Holders.

         The  Kendall   Registration   Rights   Agreement   contains   customary
indemnification  provisions  whereby the Company is obligated  to indemnity  and
hold  harmless  the  Holders and certain  related  parties,  and the Holders are
obligated under certain circumstances to indemnify and hold harmless the Company
and  certain  related  parties,  in each  case in  connection  with  liabilities
relating  to  the  registration  of  the  Registrable  Securities.  The  Kendall
Registration  Rights  Agreement also provides for certain rights of contribution
in the event that such indemnity is unavailable.



                          DESCRIPTION OF CAPITAL STOCK


         The  summary of the terms of the share  capital of Tyco set forth below
does not  purport to be  complete  and is  qualified  by  reference  to the Tyco
Memorandum of Association (the "Tyco  Memorandum") and the Bye-laws of Tyco (the
"Tyco Bye-Laws").  Copies of the Tyco Memorandum and the Tyco Bye-Laws are filed
as exhibits to the Registration Statement.

AUTHORIZED SHARE CAPITAL

         Tyco's authorized share capital consists of 750,000,000  Common Shares,
par  value  $0.20  per  share,  125,725,000  convertible  cumulative  redeemable
preference  shares,  par value $1 per share,  divided  into three  classes  (the
"Convertible  Preference  Shares") (including a class of first preference shares
(the "First Preference Shares")),  and 25,000 exchangeable cumulative redeemable
preference shares, par value $1 per share (the "Exchangeable Preference Shares")
(the  Convertible  Preference  Shares and the  Exchangeable  Preference  Shares,
collectively,  the  "Preference  Shares").  As of August  6,  1997,  there  were
243,231,006 Common Shares outstanding and no Preference Shares outstanding.

COMMON SHARES

         Dividends.  The Board of Directors of Tyco may declare dividends out of
profits of Tyco  available  for that purpose as long as there are no  reasonable
grounds for believing  that Tyco is, or after such dividend  would be, unable to
pay its  liabilities  as they  became due or if the  realizable  value of Tyco's
assets  would  thereby be less than the  aggregate  of its  liabilities  and its
issued share capital and


                                     - 14 -


<PAGE>

share premium accounts. Subject to such special rights as may be attached to any
other shares in Tyco, all dividends are payable according to the amounts paid or
credited  as paid on Common  Shares.  Dividends  are  normally  payable  in U.S.
dollars,  but holders with a registered  address in the United Kingdom and other
countries outside the United States may receive payment in another currency. Any
dividend  which is  unclaimed  may be invested or  otherwise  made use of by the
Board of  Directors  of Tyco and  after a period  of 12 years is  forfeited  and
reverts to Tyco.

         Voting Rights.  At any general  meeting of Tyco,  votes may be given in
person or by proxy and each holder of Common  Shares is  entitled,  on a show of
hands,  to one vote and, on a poll,  to one vote for each  Common  Share held by
him. Any proxy must be a shareholder of Tyco.

         Liquidation.  On a  liquidation  of Tyco,  holders of Common Shares are
entitled to receive any assets  remaining  after the payment of the Tyco's debts
and the expenses of the  liquidation,  subject to such special  rights as may be
attached to any other class of shares.

         Suspension  of  Rights.  In  certain  circumstances,  the  rights  of a
shareholder  to vote and to receive  any payment or income or capital in respect
of a Common  Share may be  suspended.  Those  circumstances  include  failure to
provide  information about ownership of and other interests in Common Shares, if
so required in accordance with Tyco Bye-Laws.

         Variation  of  Rights.  If at any time  the  share  capital  of Tyco is
divided  into  different  classes of shares,  the rights  attached  to any class
(unless  otherwise  provided  by the  terms of the  issue of the  shares of that
class) may be varied with the consent in writing of the holders of three-fourths
of the issued  shares of that class or with the sanction of a resolution  passed
at a separate  general  meeting of the  holders of the shares of that class by a
majority of three-fourths of such holders voting in person or by proxy.

         Transfers.  Common  Shares  may be  transferred  in any manner the Tyco
Board of Directors may approve.  The Board of Directors may require the transfer
to be by an  instrument  signed by the  transferor  and, in the case of a partly
paid share,  also by the  transferee.  The instrument  must be in writing in the
usual common form or in any other form which the Board of Directors  may approve
and must be lodged at the office of the registrar of Tyco for registration.  The
Tyco Board of Directors  may decline to register any transfer of shares on which
Tyco has a lien,  any  transfer of shares not fully paid up to a  transferee  of
whom they do not approve  and any  transfer  of shares by a  transferor  or to a
transferee  on whom Tyco has duly served a notice  under the  provisions  of the
Tyco Bye-Laws during a period of suspension of voting rights.

         Registrar  and  Transfer  Agent.   AS&K  Services   Limited  is  Tyco's
Registrar.  ChaseMellon  Shareholder Services,  L.L.C. is the transfer agent for
Common Shares.

         Two-for-One   Stock  Split.   On  August  1,  1997,  Tyco  announced  a
two-for-one stock split on its Common Shares. The split will be in the form of a
100 percent stock  distribution  payable on October 22, 1997 to  shareholders of
record on October 1, 1997.

TYCO PREFERENCE SHARES

         Under  the Tyco  Bye-Laws,  the Tyco  Board of  Directors,  in its sole
discretion,  may  designate,  allot  and  issue  one or  more  series  of  First
Preference Shares from the authorized and unissued First


                                     - 15 -


<PAGE>

Preference Shares. Subject to limitations imposed by law, the Tyco Memorandum or
the Tyco  Bye-Laws,  the  Board of  Directors  is  empowered  to  determine  the
designation  of, and the  number of shares  constituting,  each  series of First
Preference  Shares,  the dividend rate for each series, the terms and conditions
of any voting and conversion rights for each series, the amounts payable on each
series on redemption or return of capital and the preference and relative rights
among each  series of First  Preference  Shares.  At  present,  7,500,000  First
Preference  Shares have been designated as Series A First Preference  Shares and
are  reserved for issue upon  exercise of the Rights under the Tyco  Shareholder
Rights Plan.

WARRANTS

         The A Warrants and the B Warrants  were issued  pursuant to two Warrant
Agreements,  each dated as of July 7, 1992 (the "Warrant  Agreements"),  between
Kendall and Norwest Bank Minnesota,  N.A, as warrant agent. Upon consummation of
the  Kendall  Merger  and  the  subsequent  ADT  Merger,   the  Warrants  became
exercisable for Common Shares and the Company assumed the obligations of Kendall
under the Warrant Agreements. The following summary of certain provisions of the
Warrants  does not purport to be complete  and is subject in all respects to the
provisions of the Warrant  Agreements,  copies of which are filed as exhibits to
the  Registration  Statement,  to which  reference is hereby made for a complete
statement of such provisions.

         The  Warrants  were  issued on July 7,  1992,  in  connection  with the
restructuring  of Kendall under Chapter 11 of the United States  Bankruptcy Code
(the  "Kendall  Restructuring")  to  holders  of equity  securities  of  Kendall
outstanding prior to consummation of the Kendall  Restructuring.  Each A Warrant
entitled the holder  thereof to purchase one share of common stock of Kendall at
a price of $15.46 per share,  and each B Warrant entitled the holder to purchase
one share of common stock of Kendall at a price of $20.62 per share. As a result
of the Kendall  Merger (and a two-for-one  split of the Common Stock in November
1995) and the subsequent ADT Merger,  each A Warrant entitles the holder thereof
to purchase  2.5897 Common Shares at an exercise  price of $5.97 per share,  and
each B Warrant  entitles the holder thereof to purchase  2.5897 Common Shares at
an exercise  price of $7.96 per share.  The  applicable  exercise  price and the
number  of  shares  issuable  upon  exercise  of the  Warrants  are  subject  to
adjustment in certain circumstances. Holders of the Warrants are not entitled to
any rights as shareholders of the Company until such holders  properly  exercise
the Warrants and acquire Common Shares.

SHAREHOLDER RIGHTS PLAN

         In 1996, Tyco adopted a Shareholders Rights Plan (the "Tyco Shareholder
Rights Plan").  The Tyco  Shareholders  Rights Plan provides that unless certain
actions are taken by the Tyco Board of Directors, upon the Distribution Date (as
defined therein) each right other than those rights owned by an Acquiring Person
(as defined  therein) will become  exercisable.  Each right entitles its holder,
among other things,  to purchase  Common Shares from Tyco at a 50% discount from
the market price of Common Shares on the Distribution Date.

STOCK EXCHANGE LISTING

         The Common Shares are listed on the New York Stock Exchange, the London
Stock Exchange and the Bermuda Stock Exchange.


                                     - 16 -


<PAGE>

                              PLAN OF DISTRIBUTION

         The 12,424,964  Shares owned by the Westar Selling  Shareholder  may be
offered in one or more  underwritten  offerings or in one or more Block  Trades,
provided that the total number of Demand Underwritten Offerings and Block Trades
may not exceed three in the aggregate.  Shares that are Unrestricted  Securities
may not be offered in a Block Trade pursuant to this Prospectus.

         None of the  Shares  owned by the  Westar  Selling  Shareholder  may be
offered  pursuant to this Prospectus  after such time as the Shares owned by the
Westar Selling Shareholder cease to be Registrable  Securities,  or, if earlier,
24  months  from the date of the  Western  Registration  Rights  Agreement.  See
"Selling  Shareholders--Westar Selling Shareholder--Western  Registration Rights
Agreement."

         The Warrants and/or Warrant Shares may be offered and sold from time to
time by the  Kendall  Selling  Securityholders  on the New York  Stock  Exchange
(Warrant Shares only), in the  over-the-counter  market, in privately negotiated
transactions  or  otherwise,  at prices  and terms  then  prevailing,  at prices
related to the then-current market price, or in negotiated  transactions,  or at
negotiated prices. The Warrants and/or Warrant Shares offered hereby may be sold
by one or  more of the  following  methods,  without  limitation:  (a)  ordinary
brokerage transactions and transactions in which the broker solicits purchasers;
(b) a block  trade in which a broker or dealer so engaged  will  attempt to sell
the  shares  as agent but may  position  and  resell a  portion  of the block as
principal to facilitate the transaction;  (c) purchases by a broker or dealer or
dealer as principal and resale by such broker or dealer for its account pursuant
to this  Prospectus;  and (d)  face-to-face  transactions  between  sellers  and
purchasers without a broker-dealer.

         In connection  with the sale of  Securities,  underwriters  may receive
compensation in the form of discounts, concessions, or commissions. Underwriters
may sell  Securities  to or  through  dealers,  and  such  dealers  may  receive
compensation  in the form of discounts,  concessions,  or  commissions  from the
underwriters  and/or  commissions  from the  purchasers for whom they may act as
agents.  Underwriters,  dealers, and agents that participate in the distribution
of Securities may be deemed to be underwriters, and any discounts or commissions
received  by them and any  profit  on the  resale of  Securities  by them may be
deemed to be underwriting  discounts and commissions,  under the Securities Act.
Any such  underwriter  or agent will be  identified,  and any such  compensation
received will be described, in the Prospectus Supplement.

         The Selling  Shareholders and any  broker-dealers who act in connection
with the sale of the  Securities may be deemed to be  "underwriters"  within the
meaning of Section 2(11) of the Securities Act, and any commissions  received by
them and profit on any resale of the Securities as principal  might be deemed to
be underwriting discounts and commissions.

         The Company has agreed to indemnify  the Selling  Shareholders  against
certain   liabilities,   including   liabilities   under  the  Securities   Act.
Underwriters and agents who participate in the distribution of Securities may be
entitled  under  agreements  which  may  be  entered  into  by  the  Company  to
indemnification   by  the  Company   against  certain   liabilities,   including
liabilities under the Securities Act.

         The Company will pay expenses related to the Registration Statement and
this Prospectus (including registration fees with respect to the Warrant Shares)
estimated  to be  approximately  $185,000.  The  Selling  Shareholder  will  pay
expenses related to the Registration Statement and the Prospectus


                                     - 17 -


<PAGE>

(including  registration  fees with respect to the Shares other than the Warrant
Shares) estimated to be approximately $345,680.

                                  LEGAL MATTERS

              The  validity  of the Common  Shares to be sold  pursuant  to this
Prospectus will be passed upon by Appleby, Spurling & Kempe, Hamilton,  Bermuda,
special counsel to Tyco.

                                     EXPERTS

         The  supplemental  consolidated  financial  statements  of  Tyco  as of
December  31, 1996 and 1995 and for each of the three years in the period  ended
December 31, 1996 included in Tyco's Current Report on Form 8-K and incorporated
by reference in this  Prospectus give  retroactive  effect to the merger between
ADT Limited and Tyco  International  Ltd. (now Tyco International (US) Inc.) and
have been examined by Coopers & Lybrand.  The consolidated  financial statements
of ADT Limited as of December  31, 1996 and 1995 and for each of the three years
in  the  period  ended  December  31,  1996  (not  separately   presented,   but
incorporated  herein) have been audited by Coopers & Lybrand.  The  consolidated
financial  statements of Tyco  International  Ltd (now Tyco  International  (US)
Inc.) as of  December  31,  1996 and for the year  then  ended  (not  separately
presented or incorporated  herein) and as of June 30, 1996 and 1995 and for each
of the three years in the period ended June 30, 1996 (not separately  presented,
but  incorporated  herein)  have been audited by Coopers & Lybrand  L.L.P.  Such
reports are  incorporated  by reference  herein in reliance on the  authority of
said firms as experts in accounting and auditing.


                                     - 18 -


<PAGE>

PART II

INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

         The estimated expenses in connection with the issuance and distribution
of the Securities covered by this Registration Statement are as follows:

           SEC registration fee (actual)............................. $287,800
           Printing and engraving expenses...........................   25,000
           Legal fees and expenses...................................  150,000
           Accounting fees and expenses..............................   45,000
           Miscellaneous.............................................   25,000
                                                                      --------
               Total................................................. $532,800*

- ----------------
* Includes $285,680 in registration fees, $50,000 in legal fees and expenses and
$10,000 in accounting fees and expenses paid by the Westar Selling Shareholder.


ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS

         Bye-Law 102 of the Tyco  Bye-Laws  provides,  in part,  that Tyco shall
indemnify its directors  and other  officers for all costs,  losses and expenses
which they may incur in the  performance of their duties as director or officer,
provided  that  such  indemnification  is not  otherwise  prohibited  under  the
Companies Act 1981 (as amended) of Bermuda. Section 98 of the Companies Act 1981
(as amended) prohibits such indemnification against any liability arising out of
the fraud or  dishonesty  of the  director or  officer.  However,  such  section
permits Tyco to indemnify a director or officer  against any liability  incurred
by him in  defending  any  proceedings,  whether  civil  or  criminal,  in which
judgment is given in his favor or in which he is acquitted or when other similar
relief is granted to him.

         The  Registrant  maintains  $75,000,000  of insurance to reimburse  its
directors  and officers  for charges and expenses  incurred by them for wrongful
acts claimed  against them by reason of their being or having been  directors or
officers  of  the   Registrant  or  any  subsidiary   thereof.   Such  insurance
specifically excludes reimbursement of any director or officer for any charge or
expense incurred in connection with various designated matters,  including libel
or slander,  illegally  obtained  personal  profits,  profits  recovered  by the
Registrant  pursuant  to  Section  16(b)  of the  Exchange  Act  and  deliberate
dishonesty.


                                      II-1

<PAGE>

ITEM 16. EXHIBITS

3.1     --Memorandum  of  Association  of  Registrant  (previously  filed  as an
        Exhibit to  Registrant's  Annual  Report on Form 10-K for the Year Ended
        December 31, 1996)
3.2     --Certificate of Incorporation on Change of Name (previously filed as an
        Exhibit to the  Registrant's  Current  Report on Form 8-K filed July 10,
        1997 ("July 10, 1997 8-K")
3.3     --Bye-Laws of the Registrant (previously filed as an Exhibit to the July
        10, 1997 Form 8-K))
4.1     --Rights  Agreement  between  Registrant and Citibank,  N.A. dated as of
        November 6, 1996  (previously  filed as an Exhibit to Registrant's  Form
        8-A dated November 12, 1996)
4.2     --First  Amendment  between  Registrant  and Citibank,  N.A. dated as of
        March 3, 1997 to Rights Agreement between Registrant and Citibank,  N.A.
        dated  as of  November  6,  1996  (previously  filed  as an  Exhibit  to
        Registrant's Form 8-A/A dated March 3, 1997)
4.3     --Second  Amendment  between  Registrant and Citibank,  N.A. dated as of
        July 2, 1997 to Rights  Agreement  between  Registrant and Citibank N.A.
        dated  as of  November  6,  1996  (previously  filed  as an  Exhibit  to
        Registrant's Form 8-A/A dated July 2, 1997)
5       --Opinion  of Appleby,  Spurling & Kempe  regarding  the validity of the
        securites registered*
10.1    --Settlement  Agreement,  dated as of July 16, 1997,  between Registrant
        and Western Resources, Inc.**
10.2    --Registration  Rights  Agreement,  dated August 14, 1997,  among Westar
        Capital, Inc., Western Resources, Inc. and Registrant**
10.3    --Registration Rights Agreement,  dated as of July 7, 1992 (the "Kendall
        Registration  Rights  Agreement"),  among  Kendall  International,  Inc.
        (formerly CDK Holding  Corporation;  "Kendall")  and certain  holders of
        Kendall  securities  (incorporated  by  reference to Exhibit 4.42 to the
        Registration  Statement on Form 10 of Kendall,  as amended (the "Kendall
        Form 10")).
10.4    --Amendment No. 1 to the Kendall  Registration  Rights Agreement,  dated
        July 11,  1994  (incorporated  by  reference  to  Exhibit  10(b) to Tyco
        International (US) Inc.  (formerly Tyco International  Ltd., "Old Tyco")
        Registration Statement on Form S-3, File No. 33-57509).
10.5    --Warrant  Agreement,  dated as of July 7,  1992,  between  Holding  and
        Norwest Bank  Minnesota,  N.A., as warrant  agent (the "Warrant  Agent")
        (including the form of A Warrant)  (incorporated by reference to Exhibit
        10.46.1 to the Kendall Form 10).
10.6    --Warrant  Agreement,  dated as of July 7, 1992, between Kendall and the
        Warrant  Agent  (including  the  form of B  Warrant),  (incorporated  by
        reference to Exhibit 10.46.3 to the Kendall Form 10).
   
23.1    --Consent  of  Coopers & Lybrand*
23.2    --Consent  of  Coopers & Lybrand L.L.P.*
23.3    --Consent of Appleby, Spurling & Kempe (contained in Exhibit 5)*
24      --Power of Attorney*
    

- --------------------
*filed herewith
** previously filed

ITEM 17. UNDERTAKINGS

         Insofar as indemnification for liabilities arising under the Securities
Act  may be  permitted  to  directors,  officers  and  persons  controlling  the
Registrant  pursuant  to the  foregoing  provisions,  the  Registrant  has  been
informed that in the opinion of the Commission such  indemnification  is against
public policy as expressed in the Act and is, therefore,  unenforceable.  In the
event that a claim for indemnification  against such liabilities (other than the
payment by the Registrant of expenses incurred or paid by a director, officer or
controlling  person of the Registrant in the  successful  defense of any action,
suit or proceeding) is asserted by such director,  officer or controlling person
in connection with the


                                      II-2


<PAGE>

securities being  registered,  the Registrant will, unless in the opinion of its
counsel the matter has been settled by controlling precedent,  submit to a court
of appropriate  jurisdiction the question whether such  indemnification by it is
against  public policy as expressed in the Act and will be governed by the final
adjudication of such issue.

         The undersigned Registrant hereby undertakes:

          (1) To file,  during  any  period  in which  offers or sales are being
     made, a post-effective amendment to this Registration Statement;

               (i) To include any prospectus required by Section 10(a)(3) of the
          Securities Act of 1933;

               (ii) To reflect  in the  prospectus  any facts or events  arising
          after the effective  date of the  Registration  Statement (or the most
          recent post-effective amendment thereof) which, individually or in the
          aggregate, represent a fundamental change in the information set forth
          in the  registration  statement.  Notwithstanding  the foregoing,  any
          increase  or decrease  in volume of  securities  offered (if the total
          dollar  value of  securities  offered  would not exceed that which was
          registered)  and  any  deviation  from  the  low  or  high  end of the
          estimated  maximum  offering  range  may be  reflected  in the form of
          prospectus  filed with the  Commission  pursuant to Rule 424(b) if, in
          the aggregate,  the changes in volume and price represent no more than
          a 20% change in the maximum aggregate  offering price set forth in the
          "Calculation of Registration Fee" table in the effective  registration
          statement;

               (iii) To include any  material  information  with  respect to the
          plan of  distribution  not  previously  disclosed in the  Registration
          Statement  or  any  material   change  to  such   information  in  the
          Registration Statement;

     provided,  however,  that paragraphs (1)(i) and (1)(ii) do not apply if the
     Registration  Statement  is on Form  S-3,  Form  S-8 or Form  F-3,  and the
     information required to be included in a post-effective  amendment by those
     paragraphs  is  contained  in periodic  reports  filed or  furnished to the
     Commission  by the  Registrant  pursuant  to  Section  13 or  15(d)  of the
     Securities  Exchange Act of 1934 that are  incorporated by reference in the
     Registration Statement.

          (2) That,  for the  purpose of  determining  any  liability  under the
     Securities Act of 1933, each such post-effective  amendment shall be deemed
     to be a new  registration  statement  relating  to the  securities  offered
     therein,  and the offering of such  securities at that time shall be deemed
     to be the initial bona fide offering thereof.

          (3) To remove from registration by means of a post-effective amendment
     any  of  the  securities  being  registered  which  remain  unsold  at  the
     termination of the offering.

         The  undersigned  Registrant  hereby  undertakes  that, for purposes of
determining  any liability  under the Securities Act of 1933, each filing of the
Registrant's  annual report pursuant to Section 13(a) or 15(d) of the Securities
Exchange Act of 1934 (and, where applicable,  each filing of an employee benefit
plan's annual report pursuant to Section 15(d) of the Securities Exchange Act of
1934) that is


                                      II-3


<PAGE>

incorporated by reference in the Registration  Statement shall be deemed to be a
new registration  statement relating to the securities offered therein,  and the
offering of such  securities at that time shall be deemed to be the initial bona
fide offering thereof.

         The undersigned  Registrant hereby undertakes that: (1) for purposes of
determining  any liability  under the Securities  Act of 1933,  the  information
omitted from the form of prospectus filed as part of this Registration Statement
in reliance upon Rule 430A and  contained in a form of  prospectus  filed by the
Registrant  pursuant to Rule 424(b)(1) or (4) or 497(h) under the Securities Act
shall be deemed to be part of this Registration  Statement as of the time it was
declared  effective;  and (2) for the purpose of determining any liability under
the Securities Act of 1933, each  post-effective  amendment that contains a form
of prospectus shall be deemed to be a new Registration Statement relating to the
securities  offered  therein,  and the offering of such  securities at that time
shall be deemed to be the initial bona fide offering thereof.


                                      II-4



<PAGE>

                                   SIGNATURES

         Pursuant  to the  requirements  of the  Securities  Act  of  1933,  the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the  requirements  for filing on Form S-3 and has duly caused this  Amendment
No.  1 to  the  Registration  Statement  to be  signed  on  its  behalf  by  the
undersigned,  thereunto  duly  authorized,  in the Town of Exeter,  State of New
Hampshire, on the 21 day of August 1997.

                                     TYCO INTERNATIONAL LTD.


                                     By:  /s/  MARK H. SWARTZ
                                          -------------------
                                          Mark H. Swartz
                                          Executive Vice President-
                                             Chief Financial Officer
                                          (Principal Financial and
                                             Accounting Officer)

         Pursuant  to the  requirements  of the  Securities  Act of  1933,  this
Registration  Statement has been signed by the  following  persons on August 21
1997 in the capacities indicated below.

SIGNATURE                       TITLE
- ---------                       -----

          *                     Chairman of the Board, President, Chief
- -----------------------         Executive Officer and Director (Principal
L. Dennis Kozlowski             Executive Officer)



          *                    Director
- -----------------------
Michael A. Ashcroft


          *                    Director and Vice President
- -----------------------
Joshua M. Berman


          *                    Director
- -----------------------
Richard S. Bodman



         *                     Director
- -----------------------
John F. Fort


                                      II-5


<PAGE>

         *                     Director
- -----------------------
Stephen W. Foss


         *                     Director
- -----------------------
Richard A. Gilleland


         *                     Director
- -----------------------
Philip M. Hampton


         *                     Director
- -----------------------
James S. Pasman, Jr.


         *                     Director
- -----------------------
W. Peter Slusser


/s/ MARK H. SWARTZ             Executive Vice President-Chief Financial Officer
- -----------------------        (Principal Financial and Accounting Officer)
Mark H. Swartz


         *                     Director
- -----------------------
Frank E. Walsh, Jr.

   
*/s/ MARK H. SWARTZ
- -----------------------
Attorney-in-Fact
    

                                      II-6



<PAGE>

                                INDEX TO EXHIBITS

                                                                 Sequentially
Exhibit                                                            Numbered
Number                       Description                             Page
- ------                       -----------                             ----


3.1  --Memorandum of Association of Registrant  (previously  filed as an Exhibit
     to Registrant's  Annual Report on Form 10-K for the Year Ended December 31,
     1996)
3.2  --Certificate of  Incorporation  on Change of Name (previously  filed as an
     Exhibit to the Registrant's  Current Report on Form 8-K filed July 10, 1997
     ("July 10, 1997 8-K")
3.3  --Bye-Laws of the  Registrant  (previously  filed as an Exhibit to the July
     10, 1997 Form 8-K))
4.1  --Rights  Agreement  between  Registrant  and  Citibank,  N.A.  dated as of
     November 6, 1996 (previously  filed as an Exhibit to Registrant's  Form 8-A
     dated November 12, 1996)
4.2  --First Amendment between  Registrant and Citibank,  N.A. dated as of March
     3, 1997 to Rights Agreement between Registrant and Citibank,  N.A. dated as
     of November 6, 1996  (previously  filed as an Exhibit to Registrant's  Form
     8-A/A dated March 3, 1997)
4.3  --Second Amendment between  Registrant and Citibank,  N.A. dated as of July
     2, 1997 to Rights Agreement  between  Registrant and Citibank N.A. dated as
     of November 6, 1996  (previously  filed as an Exhibit to Registrant's  Form
     8-A/A dated July 2, 1997)
5    --Opinion  of  Appleby,  Spurling & Kempe  regarding  the  validity  of the
     securities registered*
10.1 --Settlement  Agreement,  dated as of July 16, 1997, between Registrant and
     Western Resources, Inc.**
10.2 --Registration  Rights  Agreement,  dated  August 14,  1997,  among  Westar
     Capital, Inc., Western Resources, Inc. and Registrant**
10.3 --Registration  Rights  Agreement,  dated as of July 7, 1992 (the  "Kendall
     Registration  Rights  Agreement"),   among  Kendall   International,   Inc.
     (formerly  CDK  Holding  Corporation;  "Kendall")  and  certain  holders of
     Kendall  securities  (incorporated  by  reference  to  Exhibit  4.42 to the
     Registration Statement on Form 10 of Kendall, as amended (the "Kendall Form
     10")).
10.4 --Amendment No. 1 to the Kendall Registration Rights Agreement,  dated July
     11, 1994  (incorporated by reference to Exhibit 10(b) to Tyco International
     (US) Inc.  (formerly  Tyco  International  Ltd.,  "Old Tyco")  Registration
     Statement on Form S-3, File No. 33- 57509).
10.5 --Warrant Agreement,  dated as of July 7, 1992, between Holding and Norwest
     Bank Minnesota, N.A., as warrant agent (the "Warrant Agent") (including the
     form of A Warrant)  (incorporated  by reference  to Exhibit  10.46.1 to the
     Kendall Form 10).
10.6 --Warrant  Agreement,  dated as of July 7, 1992,  between  Kendall  and the
     Warrant Agent (including the form of B Warrant), (incorporated by reference
     to Exhibit 10.46.3 to the Kendall Form 10).
   
23.1 --Consent of Coopers & Lybrand*
23.2 --Consent of Coopers & Lybrand L.L.P.*
23.3 --Consent of Appleby, Spurling & Kempe (contained in Exhibit 5)*
24   --Power of Attorney*
    

- -----------------
*filed herewith
** previously filed

                                      II-7





                                 August 16, 1997

Tyco International Ltd.
Cedar House
41 Cedar Avenue
Hamilton HM 12
Bermuda

                           re:      Registration Statement on Form S-3

Ladies and Gentlemen:

         We have acted as  attorneys in Bermuda for Tyco  International  Ltd., a
Bermuda  limited  liability  company  ("Tyco")  in  connection  with the sale of
12,517,072 Common Shares of Tyco (the "Shares") including 12,424,964 Shares held
by Westar Capital,  Inc. ("Westar") and 21,910 A Warrants and 13,657 B Warrants,
(the  "Warrants")  assumed by Tyco  Company,  (which  will  entitle  the holders
thereof to acquire up to 92,108 of the Shares  pursuant to a prospectus  forming
part of the  Registration  Statement on Form S-3,  filed with the Securities and
Exchange Commission on the 15th August, 1997.


         This  opinion  is  based  upon  and  confined  to the  laws of  Bermuda
presently in force as currently  applied by the Courts of Bermuda.  We have made
no  investigation  of,  nor do we  express  any  opinion  as to, the laws of any
jurisdiction other than Bermuda.


         In order to render this  opinion,  we have been  supplied with and have
reviewed and relied upon the following documents:


<PAGE>



          (a) the  Certificate of  Incorporation,  Memorandum of Association and
          Bye-laws of Tyco;


          (b) a copy of the  resolutions  adopted by the Board of  Directors  of
          Tyco as at 2nd July, 1997 (the "Board Resolution");


          (c) a copy of  resolutions  adopted by the  Shareholders  at a Special
          General Meeting of Tyco held 2nd July 1997;


          (d) a copy of the draft  dated  August 15, 1997 of a  Prospectus  (the
          "Prospectus")  that is to form part of the  Registration  Statement on
          Form  S-3  (the  "Registration   Statement")  to  be  filed  with  the
          Securities and Exchange Commission on August 15, 1997;

          (e) a copy of the pages of the Registration Statement signed by all of
          the Directors of Tyco (the "Signature Pages:);


          (f) a copy of an executed  Assumption  Agreement dated as of July 1st,
          1997  and  made  between  Tyco  (then  named  ADT  Limited)  and  Tyco
          International  Ltd.  a  Massachusetts  corporation,  relating  to  the
          assumption  by Tyco (Old Tyco) of the Warrant  Agreements  (as defined
          below) and  acknowledged  by  ChaseMellon  Shareholder  Services,  LLC
          ("ChaseMellon") as Warrant Agent;


          (g) a copy of the  Register of Members and an extract  from the Branch
          Registrar  of  Members   maintained  by  ChaseMellon   (together  "the
          Registrars"); and


          (h) a copy of  permissions  given by the  Bermuda  Monetary  Authority
          under the Exchange Control Act (1972) and related  regulations for the
          issue of Tyco Common Shares.


         We have also relied upon our  searches of  documents  of public  record
maintained  by the  Registrar  of Companies in Bermuda and of the Causes Book of
the Supreme Court of Bermuda made on 22nd July, 1997 (the "Searches").


         We have assumed:


                                      - 2 -


<PAGE>

          (i) that there is no provision of the law, regulation or public policy
          of any jurisdiction,  other than Bermuda,  which might have a material
          effect on any of the opinions herein expressed;


          (ii) that all representations appearing in the Prospectus are true and
          complete in all material respects;


          (iii) the  genuineness of all signatures on the documents  examined by
          us;


          (iv) the conformity to original  documents,  of all documents produced
          to us as copies and the authenticity of all original  documents which,
          or copies of which, have been submitted to us;


          (v)  that  the  information  disclosed  by our  Searches  has not been
          materially  altered and that the Searches did not fail to disclose any
          material   information   which  had  been   delivered  for  filing  or
          registration,  but was not  disclosed  or did not appear on the public
          file at the time of the Searches; 


          (vi) the  capacity,  power and authority of the parties to and the due
          authorisation,  execution  and delivery by all parties  thereto of the
          Warrant  Agreement,  dated  as  of  July  7,  1992,  between,  Kendall
          International,  Inc.,  a Delaware  corporation  (formerly  CDK Holding
          Corporation,   "Kendall"),   and   Norwest   Bank   Minnesota,   N.A.,
          ("Norwest"),  as Warrant Agent, with respect to certain A Warrants and
          the Warrant  Agreement,  dated as of July 7, 1992, between Kendall and
          Norwest,  as  Warrant  Agent,  with  respect  to  certain  B  Warrants
          (together the "Warrant Agreements");


          (vii) the capacity,  power and authority of the parties to and the due
          authorisation,  execution  and  delivery by all parties  thereto of an
          Assumption  Agreement  dated as of October 19th, 1994 between Old Tyco
          and Kendall and acknowledged by Norwest as Warrant Agent,  relating to
          the  Assumption  by Old Tyco of the  Warrant  Agreements  (the  "First
          Agreement");


          (viii) that each of the Warrant  Agreements and the First Agreement is
          valid,  binding and enforceable in accordance with its terms under the
          laws by which it is expressed to be governed; and


          (ix) that the Signature  Pages  evidence the approval of the Directors
          of all matters relating to Tyco set out in the Registration Statement.


         Unless  otherwise  defined  herein,  terms defined in the  Registration
Statement and the Prospectus have the same meanings when used in this opinion.


         Based on and subject to the foregoing,  subject to the reservations set
out below, and to any matters not disclosed to us, we are of the opinion that:


                                      - 3 -


<PAGE>

          (1) Tyco has been duly incorporated as a limited liability company and
          is validly existing and in good standing under the laws of Bermuda and
          has all requisite corporate power and authority to issue the Shares.


          (2) All  necessary  action  required  to be taken by Tyco  pursuant to
          Bermuda  law has  been  taken  by or on  behalf  of  Tyco  and all the
          necessary  authorisations and approvals of Governmental authorities in
          Bermuda have been duly obtained for

               (i) the  acquisition  by  Westar  of and the  transfer  from  the
               beneficial ownership of Westar of 12,424,964 of the Shares

               (ii) the assumption by the Company of the Warrants, and

               (iii)  the  issue  by the  Company  of the  other  92,108  Shares
               referred to in the Prospectus.


          (3) The 12,424,964  Shares held by Westar have been validly issued and
          are outstanding as fully paid non-assessable shares of the Company.


          (4) When duly issued and paid for pursuant to and in  accordance  with
          the terms of the Board  Resolutions  and the Warrant  Agreements,  the
          92,108 Shares will be validly  issued,  fully paid and  non-assessable
          shares in the capital of the Company.


          (5)  There  are no  taxes,  duties  or  other  charges  payable  to or
          chargeable by the  Government  of Bermuda,  or any authority or agency
          thereof,  in  respect  of the  transfer  of  12,424,964  of the Shares
          beneficially  owned by Westar,  the  transfer  of the  Warrants or the
          issue or transfer of the other 92,108 of the Shares referred to in the
          Prospectus.


         Our reservations are:


          A. Any  reference  in this  opinion to shares  being  "non-assessable"
          shall  mean,  in  relation to fully paid shares of Tyco and subject to
          any  contrary  provision  in any  agreement  in writing  between  such
          company and the holder of such shares,  that no  shareholder  shall be
          bound by an  alternation to the Memorandum of Association or Bye- laws
          of Tyco after the date on which he became a shareholder, if and so far
          as the  alternation  requires him to take, or subscribe for additional
          shares,  or in any way  increases  his  liability to contribute to the
          share capital of, or otherwise to pay money to, Tyco.


                                      - 4 -


<PAGE>

          B. We express no  opinion as to any other law other than  Bermuda  law
          and none of the opinions  expressed  herein relates to compliance with
          or matters governed by the laws of any jurisdiction except Bermuda.


         This opinion is addressed to you in connection with the registration of
the Shares with the  Securities  and Exchange  Commission  and is not to be made
available  to,  or relied on by any  other  person or  entity,  or for any other
purpose, without our prior written consent.


         We hereby consent to the inclusion of this opinion as an exhibit to the
Registration  Statement.  We also consent to the reference to our Firm under the
captions "Legal Matters" in the Prospectus.

         This opinion is to be governed by and construed in accordance  with the
laws of Bermuda and shall not give rise to legal proceedings in any jurisdiction
other than Bermuda.

                                             Yours faithfully,

                                             /s/  Appleby, Spurling & Kempe


                                      - 5 -





                       CONSENT OF INDEPENDENT ACCOUNTANTS

         We consent to the incorporation by reference in this Amendment No. 1 to
Registration  Statement on Form S-3 of Tyco  International  Ltd. (formerly named
ADT  Limited)  of  our  report  dated  March  26,  1997,  on our  audits  of the
consolidated financial statements and consolidated financial statement schedules
of ADT  Limited  as at  December  31,  1996 and 1995,  and for the  years  ended
December 31,  1996,  1995 and 1994,  which  report is included in the  Company's
Annual  Report on Form 10-K for the year ended  December  31,  1996,  and of our
report  dated  July 10,  1997,  on our  examination  of the  combination  of the
historical   consolidated   financial  statements  and  consolidated   financial
statement  schedule  of ADT Limited and Tyco  International  Ltd.  (prior to the
merger) after restatement for the pooling of interests as described in Note 1 to
the supplemental consolidated financial statements,  which report is included in
the Company's Current Report on Form 8-K dated July 10, 1997. We also consent to
the reference to our firm under the caption "Experts."

                                                               COOPERS & LYBRAND

Hamilton, Bermuda
August 21, 1997



                       CONSENT OF INDEPENDENT ACCOUNTANTS

         We consent to the incorporation by reference in this Amendment No. 1 to
Registration  Statement  on Form S-3 of our  reports  dated July 25, 1996 on our
audits of the consolidated financial statements and financial statement schedule
of Tyco  International Ltd. as of June 30, 1996 and 1995 and for the three years
in the period ended June 30, 1996,  which  reports are included in the Company's
Annual  Report on Form 10-K for the year ended  June 30,  1996 and of our report
dated July 10, 1997 which is included in the  Company's  current  report on Form
8-K on our audits of the consolidated  financial statements and the consolidated
financial  statement schedule of Tyco International Ltd. as of December 31, 1996
and June 30, 1995 and for the years ended  December 31, 1996,  June 30, 1995 and
June 30,  1994  (not  presented  separately  therein).  We also  consent  to the
reference to our firm under the caption "Experts."


                                                        COOPERS & LYBRAND L.L.P.

Boston, Massachusetts
August 21, 1997



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