<PAGE> PAGE 1
000 A000000 12/31/96
000 C000000 088048
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 A
001 A000000 SCUDDER SECURITIES TRUST
001 B000000 811-2021
001 C000000 6172952567
002 A000000 TWO INTERNATIONAL PLACE
002 B000000 BOSTON
002 C000000 MA
002 D010000 02110
002 D020000 4103
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 4
007 C010100 1
007 C020100 SCUDDER DEVELOPMENT FUND
007 C030100 N
007 C010200 2
007 C010300 3
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
020 A000001 INSTINET
020 C000001 88
020 A000002 ALEX BROWN & SONS
020 C000002 29
020 A000003 DONALDSON LUFKIN
020 C000003 27
020 A000004 WEEDEN
020 C000004 26
020 A000005 SOUND VIEW
020 C000005 24
020 A000006 LADENBURG, WILLIAM
020 C000006 18
020 A000007 SALOMON BROTHERS
020 C000007 18
020 A000008 LEHMAN BROTHERS SECURITIES
020 C000008 17
<PAGE> PAGE 2
020 A000009 NAT WEST INTERNATIONAL SECS
020 C000009 14
020 A000010 BUCKINGHAM RESH
020 C000010 11
021 000000 372
022 A000001 STATE STREET BANK
022 C000001 1243245
022 D000001 128
022 A000002 DONALDSON LUF & JEN FIXED INC.
022 C000002 275487
022 D000002 0
022 A000003 INSTINET
022 C000003 16441
022 D000003 38494
022 A000004 ALEX BROWN & SONS
022 C000004 25760
022 D000004 13253
022 A000005 FORD MOTOR CREDIT CORP
022 C000005 19858
022 D000005 9948
022 A000006 MORGAN STANLEY
022 C000006 12996
022 D000006 12758
022 A000007 OPPENHEIMER
022 C000007 5202
022 D000007 18007
022 A000008 CHEMICAL BANK
022 C000008 9500
022 D000008 9500
022 A000009 SOUND VIEW
022 C000009 654
022 D000009 17294
022 A000010 LEHMAN BROTHERS SECURITIES
022 C000010 11538
022 D000010 5556
023 C000000 1937265
023 D000000 340244
026 A000000 N
026 B000000 Y
026 C000000 Y
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 Y
026 H000000 N
027 000000 Y
077 A000000 Y
077 B000000 N
077 C000000 N
077 D000000 N
<PAGE> PAGE 3
077 E000000 N
077 F000000 N
077 G000000 N
077 H000000 N
077 I000000 N
077 J000000 N
077 K000000 N
077 L000000 N
077 M000000 N
077 N000000 N
077 O000000 N
077 P000000 N
077 Q010000 Y
077 Q020000 N
077 Q030000 Y
078 000000 N
080 C00AA00 0
081 B00AA00 0
082 B00AA00 0
083 B00AA00 0
084 B00AA00 0
086 A010000 0
086 A020000 0
086 B010000 0
086 B020000 0
086 C010000 0
086 C020000 0
086 D010000 0
086 D020000 0
086 E010000 0
086 E020000 0
086 F010000 0
086 F020000 0
008 A000101 SCUDDER, STEVENS & CLARK,INC.
008 B000101 A
008 C000101 801-252
008 D010101 NEW YORK
008 D020101 NY
008 D030101 10154
011 A000101 SCUDDER INVESTOR SERVICES, INC.
011 B000101 8-298
011 C010101 BOSTON
011 C020101 MA
011 C030101 02110
012 A000101 SCUDDER SERVICE CORPORATION
012 B000101 84-1489
012 C010101 BOSTON
012 C020101 MA
012 C030101 02110
013 A000101 COOPERS AND LYBRAND L.L.P.
013 B010101 BOSTON
<PAGE> PAGE 4
013 B020101 MA
013 B030101 02109
014 A000101 SCUDDER INVESTOR SERVICES, INC.
014 B000101 8-298
015 A000101 WESTPAC BANKING CORPORATION
015 B000101 S
015 C010101 SIDNEY
015 D010101 AUSTRALIA
015 E040101 X
015 A000102 GENERALE BANK
015 B000102 S
015 C010102 BRUSSELS
015 D010102 BELGIUM
015 E040102 X
015 A000103 GIROCREDIT BANK
015 B000103 S
015 C010103 VIENNA
015 D010103 AUSTRIA
015 E040103 X
015 A000104 CANADA TRUSTCO MORTGAGE COMPANY
015 B000104 S
015 C010104 TORONTO
015 D010104 CANADA
015 E040104 X
015 A000105 DEN DANSKE BANK
015 B000105 S
015 C010105 COPENHAGEN
015 D010105 DENMARK
015 E040105 X
015 A000106 KANSALLIS-OSAKE-PANKKI
015 B000106 S
015 C010106 HELSINKI
015 D010106 FINLAND
015 E040106 X
015 A000107 BANQUE PARIBAS
015 B000107 S
015 C010107 PARIS
015 D010107 FRANCE
015 E040107 X
015 A000108 DRESDNER BANK
015 B000108 S
015 C010108 FRANKFURT
015 D010108 GERMANY
015 E040108 X
015 A000109 NATIONAL BANK OF GREECE
015 B000109 S
015 C010109 ATHENS
015 D010109 GREECE
015 E040109 X
015 A000110 STANDARD CHARTERED BANK
015 B000110 S
<PAGE> PAGE 5
015 C010110 HONG KONG
015 D010110 HONG KONG
015 E040110 X
015 A000111 STANDARD CHARTERED BANK
015 B000111 S
015 C010111 JAKARTA
015 D010111 INDONESIA
015 E040111 X
015 A000112 BANK OF IRELAND
015 B000112 S
015 C010112 DUBLIN
015 D010112 IRELAND
015 E040112 X
015 A000113 MORGAN GUARANTY TRUST COMPANY
015 B000113 S
015 C010113 MILAN
015 D010113 ITALY
015 E040113 X
015 A000114 SUMITOMO TRUST & BANKING CO., LTD.
015 B000114 S
015 C010114 OSAKA
015 D010114 JAPAN
015 E040114 X
015 A000115 CITIBANK N.A., SEOUL
015 B000115 S
015 C010115 SEOUL
015 D010115 KOREA
015 E040115 X
015 A000116 STANDARD CHARTERED BANK
015 B000116 S
015 C010116 BERHAD
015 D010116 MALAYSIA
015 E040116 X
015 A000117 CITIBANK MEXICO, S.A.
015 B000117 S
015 C010117 MEXICO CITY
015 D010117 MEXICO
015 E040117 X
015 A000118 MEESPIERSON N.V.
015 B000118 S
015 C010118 AMSTERDAM
015 D010118 NETHERLANDS
015 E040118 X
015 A000119 ANZ BANKING GROUP LIMITED
015 B000119 S
015 C010119 WELLINGTON
015 D010119 NEW ZEALAND
015 E040119 X
015 A000120 CHRISTIANA BANK OG KREDITKASSE
015 B000120 S
015 C010120 OSLO
<PAGE> PAGE 6
015 D010120 NORWAY
015 E040120 X
015 A000121 STANDARD CHARTERED BANK
015 B000121 S
015 C010121 MANILA
015 D010121 PHILIPPINES
015 E040121 X
015 A000122 BANCO COMMERCIAL PORTUGUES
015 B000122 S
015 C010122 LISBON
015 D010122 PORTUGAL
015 E040122 X
015 A000123 THE DEVELOPMENT BANK OF SINGAPORE LTD.
015 B000123 S
015 C010123 SINGAPORE
015 D010123 SINGAPORE
015 E040123 X
015 A000124 STANDARD BANK OF SOUTH AFRICA LIMITED
015 B000124 S
015 C010124 JOHANNESBURG
015 D010124 SOUTH AFRICA
015 E040124 X
015 A000125 BANCO SANTANDER
015 B000125 S
015 C010125 MADRID
015 D010125 SPAIN
015 E040125 X
015 A000126 SKANDINAVISKA ENSKILDA BANKEN
015 B000126 S
015 C010126 STOCKHOLM
015 D010126 SWEDEN
015 E040126 X
015 A000127 UNION BANK OF SWITZERLAND
015 B000127 S
015 C010127 ZURICH
015 D010127 SWITZERLAND
015 E040127 X
015 A000128 STANDARD CHARTERED BANK
015 B000128 S
015 C010128 BANGKOK
015 D010128 THAILAND
015 E040128 X
015 A000129 STATE STREET BANK & TRUST COMPANY
015 B000129 S
015 C010129 LONDON
015 D010129 UNITED KINGDOM
015 E040129 X
015 A000130 CITIBANK N.A.
015 B000130 S
015 C010130 ISTANBUL
015 D010130 TURKEY
<PAGE> PAGE 7
015 E040130 X
015 A000131 STATE STREET BANK & TRUST COMPANY
015 B000131 C
015 C010131 BOSTON
015 C020131 MA
015 C030131 02109
015 E020131 X
015 A000132 CITIBANK N.A.
015 B000132 S
015 C010132 BUENOS AIRES
015 D010132 ARGENTINA
015 E040132 X
015 A000133 CITIBANK N.A.
015 B000133 S
015 C010133 SANTIAGO
015 D010133 CHILE
015 E040133 X
015 A000134 CITITRUST COLOMBIA SA SOCIEDAD FIDUCIARIA
015 B000134 S
015 C010134 COLOMBIA
015 D010134 COLOMBIA
015 E040134 X
015 A000135 CITIBANK BUDAPEST RT
015 B000135 S
015 C010135 BUDAPEST
015 D010135 HUNGARY
015 E040135 X
015 A000136 DEUTSCHE BANK AG
015 B000136 S
015 C010136 BOMBAY
015 D010136 INDIA
015 E040136 X
015 A000137 BANK HAPOALIM BM
015 B000137 S
015 C010137 TEL-AVIV
015 D010137 ISRAEL
015 E040137 X
015 A000138 DEUTSCHE BANK AG
015 B000138 S
015 C010138 KARACHI
015 D010138 PAKISTAN
015 E040138 X
015 A000139 CITIBANK N.A.
015 B000139 S
015 C010139 LIMA
015 D010139 PERU
015 E040139 X
015 A000140 CITIBANK POLAND S.A.
015 B000140 S
015 C010140 WARSAW
015 D010140 POLAND
<PAGE> PAGE 8
015 E040140 X
015 A000141 THE HONG KONG & SHANGHAI BANKING CORP
015 B000141 S
015 C010141 COLOMBO
015 D010141 SRI LANKA
015 E040141 X
015 A000142 CENTRAL TRUST OF CHINA
015 B000142 S
015 C010142 TAIPEI
015 D010142 TAIWAN
015 E040142 X
015 A000143 CITIBANK N.A.
015 B000143 S
015 C010143 MONTEVIDEO
015 D010143 URUGUAY
015 E040143 X
015 A000144 CITIBANK N.A.
015 B000144 S
015 C010144 CARACAS
015 D010144 VENEZUELA
015 E040144 X
015 A000145 THE FIRST NATIONAL BANK OF BOSTON
015 B000145 S
015 C010145 SAO PAULO
015 D010145 BRAZIL
015 E040145 X
015 A000146 BARCLAYS BANK OF BOTSWANA LIMITED
015 B000146 S
015 C010146 GABORONE
015 D010146 BOTSWANA
015 E040146 X
015 A000147 HONG KONG & SHANGHAI BANKING CORP. LTD.
015 B000147 S
015 C010147 SHANGHAI
015 D010147 CHINA
015 E040147 X
015 A000148 CESKOSLOVENSKA OBCHODNI BANKA A.S.
015 B000148 S
015 C010148 PRAGUE
015 D010148 CZECH REPUBLIC
015 E040148 X
015 A000150 BARCLAYS BANK OF KENYA LIMITED
015 B000150 S
015 C010150 NAIROBI
015 D010150 KENYA
015 E040150 X
015 A000151 CESKOSLOVENSKA OBCHODNI BANKA, A.S.
015 B000151 S
015 C010151 SLOVAKIA
015 D010151 SLOVAKIA
015 E040151 X
<PAGE> PAGE 9
015 A000152 BARCLAYS BANK OF SWAZILAND LIMITED
015 B000152 S
015 C010152 SWAZILAND
015 D010152 SWAZILAND
015 E040152 X
015 A000153 BARCLAYS BANK OF ZAMBIA LIMITED
015 B000153 S
015 C010153 LUSAKA
015 D010153 ZAMBIA
015 E040153 X
015 A000154 BARCLAYS BANK OF ZIMBABWE LIMITED
015 B000154 S
015 C010154 HARARE
015 D010154 ZIMBABWE
015 E040154 X
015 A000155 BARCLAYS BANK OF GHANA LIMITED
015 B000155 S
015 C010155 ACCRA
015 D010155 GHANA
015 E040155 X
015 A000156 BARCLAYS BANK PLC
015 B000156 S
015 C010156 NICOSIA
015 D010156 CYPRUS
015 E040156 X
015 A000157 STANDARD CHARTERED BANK
015 B000157 S
015 C010157 DHAKA
015 D010157 BANGLADESH
015 E040157 X
015 A000158 MERITA BANK LIMITED
015 B000158 S
015 C010158 HELSINKI
015 D010158 FINLAND
015 E040158 X
018 000100 Y
019 A000100 Y
019 B000100 40
019 C000100 SCUDDERRRR
024 000100 N
025 D000101 0
025 D000102 0
025 D000103 0
025 D000104 0
025 D000105 0
025 D000106 0
025 D000107 0
025 D000108 0
028 A010100 48926
028 A020100 0
028 A030100 0
<PAGE> PAGE 10
028 A040100 58589
028 B010100 34524
028 B020100 0
028 B030100 0
028 B040100 28245
028 C010100 46723
028 C020100 96630
028 C030100 0
028 C040100 33527
028 D010100 28984
028 D020100 0
028 D030100 0
028 D040100 46966
028 E010100 23042
028 E020100 0
028 E030100 0
028 E040100 38757
028 F010100 45452
028 F020100 2329
028 F030100 0
028 F040100 61733
028 G010100 227651
028 G020100 98959
028 G030100 0
028 G040100 267817
028 H000100 0
029 000100 N
030 A000100 0
030 B000100 0.00
030 C000100 0.00
031 A000100 0
031 B000100 0
032 000100 0
033 000100 0
034 000100 N
035 000100 0
036 B000100 0
037 000100 N
038 000100 0
039 000100 N
040 000100 N
042 A000100 0
042 B000100 0
042 C000100 0
042 D000100 0
042 E000100 0
042 F000100 0
042 G000100 0
042 H000100 0
043 000100 0
044 000100 0
<PAGE> PAGE 11
045 000100 Y
046 000100 N
047 000100 Y
048 000100 0.000
048 A010100 500000
048 A020100 1.000
048 B010100 500000
048 B020100 0.950
048 C010100 0
048 C020100 0.000
048 D010100 0
048 D020100 0.000
048 E010100 0
048 E020100 0.000
048 F010100 0
048 F020100 0.000
048 G010100 0
048 G020100 0.000
048 H010100 0
048 H020100 0.000
048 I010100 0
048 I020100 0.000
048 J010100 0
048 J020100 0.000
048 K010100 1000000
048 K020100 0.900
049 000100 N
050 000100 N
051 000100 N
052 000100 N
053 A000100 N
054 A000100 Y
054 B000100 Y
054 C000100 Y
054 D000100 N
054 E000100 N
054 F000100 N
054 G000100 N
054 H000100 Y
054 I000100 N
054 J000100 Y
054 K000100 N
054 L000100 N
054 M000100 Y
054 N000100 N
054 O000100 Y
055 A000100 N
055 B000100 N
056 000100 Y
057 000100 N
058 A000100 N
<PAGE> PAGE 12
059 000100 Y
060 A000100 Y
060 B000100 Y
061 000100 1000
062 A000100 N
062 B000100 0.0
062 C000100 0.0
062 D000100 0.0
062 E000100 0.0
062 F000100 0.0
062 G000100 0.0
062 H000100 0.0
062 I000100 0.0
062 J000100 0.0
062 K000100 0.0
062 L000100 0.0
062 M000100 0.0
062 N000100 0.0
062 O000100 0.0
062 P000100 0.0
062 Q000100 0.0
062 R000100 0.0
063 A000100 0
063 B000100 0.0
066 A000100 Y
066 B000100 Y
066 C000100 N
066 D000100 N
066 E000100 N
066 F000100 N
066 G000100 N
067 000100 N
068 A000100 N
068 B000100 N
069 000100 N
070 A010100 Y
070 A020100 Y
070 B010100 Y
070 B020100 N
070 C010100 Y
070 C020100 N
070 D010100 Y
070 D020100 N
070 E010100 Y
070 E020100 N
070 F010100 Y
070 F020100 N
070 G010100 Y
070 G020100 N
070 H010100 Y
070 H020100 N
<PAGE> PAGE 13
070 I010100 Y
070 I020100 N
070 J010100 Y
070 J020100 Y
070 K010100 Y
070 K020100 N
070 L010100 Y
070 L020100 Y
070 M010100 Y
070 M020100 Y
070 N010100 Y
070 N020100 N
070 O010100 N
070 O020100 N
070 P010100 Y
070 P020100 N
070 Q010100 N
070 Q020100 N
070 R010100 N
070 R020100 N
071 A000100 232290
071 B000100 286240
071 C000100 970665
071 D000100 48
072 A000100 6
072 B000100 567
072 C000100 911
072 D000100 0
072 E000100 0
072 F000100 4787
072 G000100 0
072 H000100 0
072 I000100 1250
072 J000100 139
072 K000100 0
072 L000100 121
072 M000100 16
072 N000100 32
072 O000100 0
072 P000100 0
072 Q000100 0
072 R000100 23
072 S000100 23
072 T000100 0
072 U000100 0
072 V000100 0
072 W000100 56
072 X000100 6447
072 Y000100 0
072 Z000100 -4969
072AA000100 9183
<PAGE> PAGE 14
072BB000100 0
072CC010100 0
072CC020100 37612
072DD010100 0
072DD020100 0
072EE000100 103801
073 A010100 0.0000
073 A020100 0.0000
073 B000100 4.4800
073 C000100 0.0000
074 A000100 1
074 B000100 892
074 C000100 0
074 D000100 2898
074 E000100 4600
074 F000100 952501
074 G000100 725
074 H000100 0
074 I000100 0
074 J000100 13496
074 K000100 0
074 L000100 1655
074 M000100 10
074 N000100 976778
074 O000100 2457
074 P000100 813
074 Q000100 0
074 R010100 0
074 R020100 0
074 R030100 370
074 R040100 11255
074 S000100 0
074 T000100 961883
074 U010100 24172
074 U020100 0
074 V010100 39.79
074 V020100 0.00
074 W000100 0.0000
074 X000100 53369
074 Y000100 0
075 A000100 0
075 B000100 977915
076 000100 0.00
038 000200 0
015 A000301 STATE STREET BANK AND TRUST COMPANY
015 B000301 C
015 C010301 BOSTON
015 C020301 MA
015 C030301 02109
015 E020301 X
015 A000302 STATE STREET LONDON LIMITED
<PAGE> PAGE 15
015 B000302 S
015 C010302 LONDON
015 D010302 ENGLAND
015 E040302 X
SIGNATURE THOMAS F. MCDONOUGH
TITLE SECRETARY
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from the Scudder
Development Fund Semiannual Report for the period ended December 31, 1996 and is
qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 1
<NAME> Scudder Development Fund
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-START> JUL-01-1996
<PERIOD-END> DEC-31-1996
<INVESTMENTS-AT-COST> 622,111,696
<INVESTMENTS-AT-VALUE> 961,615,244
<RECEIVABLES> 15,152,725
<ASSETS-OTHER> 10,269
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 976,778,238
<PAYABLE-FOR-SECURITIES> 2,456,640
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 12,438,592
<TOTAL-LIABILITIES> 14,895,232
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 621,801,260
<SHARES-COMMON-STOCK> 24,171,807
<SHARES-COMMON-PRIOR> 22,833,256
<ACCUMULATED-NII-CURRENT> (4,969,227)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 5,027,379
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 340,023,594
<NET-ASSETS> 961,883,006
<DIVIDEND-INCOME> 911,360
<INTEREST-INCOME> 566,566
<OTHER-INCOME> 0
<EXPENSES-NET> 6,447,153
<NET-INVESTMENT-INCOME> (4,969,227)
<REALIZED-GAINS-CURRENT> 9,182,789
<APPREC-INCREASE-CURRENT> (37,611,945)
<NET-CHANGE-FROM-OPS> (33,398,383)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (103,860,648)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 5,591,633
<NUMBER-OF-SHARES-REDEEMED> (6,666,297)
<SHARES-REINVESTED> 2,413,215
<NET-CHANGE-IN-ASSETS> (78,405,728)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 99,645,238
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 4,786,855
<INTEREST-EXPENSE> 7,168
<GROSS-EXPENSE> 6,447,153
<AVERAGE-NET-ASSETS> 977,915,028
<PER-SHARE-NAV-BEGIN> 45.56
<PER-SHARE-NII> (.21)
<PER-SHARE-GAIN-APPREC> (1.08)
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (4.48)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 39.79
<EXPENSE-RATIO> 1.31
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
