<PAGE> PAGE 1
000 B000000 08/31/97
000 C000000 0000839302
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 DEAN WITTER INTERMEDIATE INCOME SECURITIES
001 B000000 811-5654
001 C000000 2123921600
002 A000000 2 WORLD TRADE CENTER
002 B000000 NEW YORK
002 C000000 NY
002 D010000 10048
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
007 B000000 0
007 C010100 1
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
008 A000001 DEAN WITTER INTERCAPITAL INC.
008 B000001 A
008 C000001 801-42061
008 D010001 NEW YORK
008 D020001 NY
008 D030001 10048
011 A000001 DEAN WITTER DISTRIBUTORS, INC
011 B000001 8-45262
011 C010001 NEW YORK
011 C020001 NY
011 C030001 10048
012 A000001 DEAN WITTER TRUST FSB
012 B000001 84-1785
012 C010001 JERSEY CITY
012 C020001 NJ
012 C030001 07311
013 A000001 PRICE WATERHOUSE LLP
013 B010001 NEW YORK
013 B020001 NY
<PAGE> PAGE 2
013 B030001 10036
014 A000001 DEAN WITTER REYNOLDS INC.
014 B000001 8-14172
014 A000002 MORGAN STANLEY & CO., INCORPORATED
014 B000002 8-15869
015 A000001 THE BANK OF NEW YORK
015 B000001 C
015 C010001 NEW YORK
015 C020001 NY
015 C030001 10286
015 E010001 X
018 000000 Y
019 A000000 Y
019 B000000 128
019 C000000 DEANWITTER
020 C000001 0
020 A000002 NONE
020 C000002 0
020 C000003 0
020 C000004 0
020 C000005 0
020 C000006 0
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 0
022 A000001 BANK OF NEW YORK (THE)
022 B000001 13-5160382
022 C000001 924915
022 D000001 0
022 A000002 BANCAMERICA SECURITIES INC.
022 B000002 95-4035346
022 C000002 125669
022 D000002 0
022 A000003 GOLDMAN, SACHS & CO.
022 B000003 13-5108880
022 C000003 64806
022 D000003 16179
022 A000004 SALOMON BROTHERS INC.
022 B000004 13-3082694
022 C000004 30492
022 D000004 49004
022 A000005 SMITH BARNEY SHEARSON INC.
022 B000005 13-1912900
022 C000005 21593
022 D000005 22532
022 A000006 PAINE WEBBER INC.
022 B000006 13-2638166
022 C000006 17156
022 D000006 19218
<PAGE> PAGE 3
022 A000007 DILLON, READ & CO., INC.
022 B000007 13-1939216
022 C000007 15792
022 D000007 8325
022 A000008 CITICORP SECURITIES INC.
022 B000008 13-3187336
022 C000008 8000
022 D000008 15546
022 A000009 DONALDSON, LUFKIN & JENRETTE
022 B000009 13-2741729
022 C000009 11893
022 D000009 10306
022 A000010 MORGAN STANLEY & CO., INCORPORATED
022 B000010 13-2655998
022 C000010 13714
022 D000010 6972
023 C000000 1282278
023 D000000 200163
024 000000 Y
025 A000001 LEHMAN BROTHERS HOLDINGS INC.
025 B000001 13-2518466
025 C000001 D
025 D000001 2951
025 A000002 SALOMON BROTHERS INC.
025 B000002 13-3082694
025 C000002 D
025 D000002 5051
025 D000003 0
025 D000004 0
025 D000005 0
025 D000006 0
025 D000007 0
025 D000008 0
025 D000009 0
025 D000010 0
025 D000011 0
025 D000012 0
025 D000013 0
025 D000014 0
025 D000015 0
025 D000016 0
026 A000000 N
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027 000000 Y
<PAGE> PAGE 4
028 A010000 16041
028 A020000 480
028 A030000 0
028 A040000 10418
028 B010000 9247
028 B020000 576
028 B030000 0
028 B040000 22352
028 C010000 5227
028 C020000 491
028 C030000 0
028 C040000 4769
028 D010000 5544
028 D020000 415
028 D030000 0
028 D040000 10506
028 E010000 11066
028 E020000 460
028 E030000 0
028 E040000 13312
028 F010000 10756
028 F020000 382
028 F030000 0
028 F040000 13607
028 G010000 57881
028 G020000 2804
028 G030000 0
028 G040000 74964
028 H000000 52910
029 000000 Y
030 A000000 0
030 B000000 4.25
030 C000000 0.00
031 A000000 0
031 B000000 0
032 000000 0
033 000000 0
034 000000 Y
035 000000 285
036 A000000 Y
036 B000000 0
037 000000 N
038 000000 0
039 000000 N
040 000000 Y
041 000000 Y
042 A000000 11
042 B000000 1
042 C000000 0
042 D000000 0
042 E000000 0
<PAGE> PAGE 5
042 F000000 0
042 G000000 0
042 H000000 88
043 000000 1578
044 000000 0
045 000000 Y
046 000000 N
047 000000 Y
048 000000 0.000
048 A010000 500000
048 A020000 0.600
048 B010000 250000
048 B020000 0.500
048 C010000 250000
048 C020000 0.400
048 D010000 0
048 D020000 0.000
048 E010000 0
048 E020000 0.000
048 F010000 0
048 F020000 0.000
048 G010000 0
048 G020000 0.000
048 H010000 0
048 H020000 0.000
048 I010000 0
048 I020000 0.000
048 J010000 0
048 J020000 0.000
048 K010000 1000000
048 K020000 0.300
049 000000 N
050 000000 N
051 000000 N
052 000000 N
053 A000000 N
054 A000000 Y
054 B000000 Y
054 C000000 Y
054 D000000 N
054 E000000 N
054 F000000 N
054 G000000 N
054 H000000 Y
054 I000000 N
054 J000000 Y
054 K000000 N
054 L000000 Y
054 M000000 Y
054 N000000 N
054 O000000 Y
<PAGE> PAGE 6
055 A000000 N
055 B000000 N
056 000000 Y
057 000000 N
058 A000000 N
059 000000 Y
060 A000000 Y
060 B000000 Y
061 000000 1000
062 A000000 Y
062 B000000 0.0
062 C000000 0.0
062 D000000 1.9
062 E000000 0.0
062 F000000 0.0
062 G000000 0.0
062 H000000 0.0
062 I000000 0.0
062 J000000 0.0
062 K000000 0.0
062 L000000 0.0
062 M000000 5.5
062 N000000 7.8
062 O000000 0.0
062 P000000 83.4
062 Q000000 1.5
062 R000000 0.0
063 A000000 0
063 B000000 5.6
064 A000000 N
064 B000000 N
066 A000000 N
067 000000 N
068 A000000 N
068 B000000 N
069 000000 N
070 A010000 Y
070 A020000 Y
070 B010000 N
070 B020000 N
070 C010000 N
070 C020000 N
070 D010000 N
070 D020000 N
070 E010000 N
070 E020000 N
070 F010000 N
070 F020000 N
070 G010000 N
070 G020000 N
070 H010000 N
<PAGE> PAGE 7
070 H020000 N
070 I010000 N
070 I020000 N
070 J010000 Y
070 J020000 Y
070 K010000 N
070 K020000 N
070 L010000 Y
070 L020000 Y
070 M010000 N
070 M020000 N
070 N010000 N
070 N020000 N
070 O010000 Y
070 O020000 N
070 P010000 Y
070 P020000 N
070 Q010000 N
070 Q020000 N
070 R010000 N
070 R020000 N
071 A000000 163768
071 B000000 180852
071 C000000 145526
071 D000000 113
072 A000000 12
072 B000000 13338
072 C000000 0
072 D000000 0
072 E000000 0
072 F000000 1117
072 G000000 0
072 H000000 0
072 I000000 160
072 J000000 17
072 K000000 0
072 L000000 48
072 M000000 14
072 N000000 64
072 O000000 1
072 P000000 0
072 Q000000 0
072 R000000 41
072 S000000 17
072 T000000 1578
072 U000000 0
072 V000000 0
072 W000000 8
072 X000000 3065
072 Y000000 0
072 Z000000 10273
<PAGE> PAGE 8
072AA000000 0
072BB000000 2568
072CC010000 0
072CC020000 6828
072DD010000 10230
072DD020000 25
072EE000000 0
073 A010000 0.0000
073 A020000 0.0000
073 B000000 0.0000
073 C000000 0.0000
074 A000000 0
074 B000000 3163
074 C000000 0
074 D000000 164073
074 E000000 0
074 F000000 0
074 G000000 0
074 H000000 0
074 I000000 0
074 J000000 22
074 K000000 0
074 L000000 5082
074 M000000 37
074 N000000 172377
074 O000000 0
074 P000000 209
074 Q000000 0
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 2435
074 S000000 0
074 T000000 169733
074 U010000 17179
074 U020000 513
074 V010000 0.00
074 V020000 0.00
074 W000000 0.0000
074 X000000 11558
074 Y000000 0
075 A000000 0
075 B000000 186135
076 000000 0.00
077 A000000 Y
077 B000000 Y
077 C000000 Y
077 D000000 N
077 E000000 N
077 F000000 N
077 G000000 N
<PAGE> PAGE 9
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 N
077 Q020000 N
077 Q030000 N
078 000000 N
080 A000000 ICI MUTUAL
080 B000000 VIGILANT, RELIANCE, CHUBB
080 C000000 110000
081 A000000 Y
081 B000000 128
082 A000000 N
082 B000000 0
083 A000000 N
083 B000000 0
084 A000000 N
084 B000000 0
085 A000000 Y
085 B000000 N
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
SIGNATURE BARRY FINK
TITLE VICE PRESIDENT
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
DEAN WITTER INTERMEDIATE INCOME SECURITIES
ANNUAL NSAR 08/32/97 Y/E
</LEGEND>
<CIK> 0000839302
<NAME> DEAN WITTER INTERMEDIATE INC.- CLASS A
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> AUG-31-1997
<PERIOD-END> AUG-31-1997
<INVESTMENTS-AT-COST> 166,465,908
<INVESTMENTS-AT-VALUE> 167,236,475
<RECEIVABLES> 5,103,466
<ASSETS-OTHER> 37,219
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 172,377,160
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,644,615
<TOTAL-LIABILITIES> 2,644,615
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 180,124,413
<SHARES-COMMON-STOCK> 193,352
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 52,362
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (11,214,797)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 770,567
<NET-ASSETS> 1,854,754
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 13,337,718
<OTHER-INCOME> 0
<EXPENSES-NET> 3,065,181
<NET-INVESTMENT-INCOME> 10,272,537
<REALIZED-GAINS-CURRENT> (2,567,762)
<APPREC-INCREASE-CURRENT> 6,828,218
<NET-CHANGE-FROM-OPS> 14,532,993
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (58)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 193,347
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 5
<NET-CHANGE-IN-ASSETS> (39,178,336)
<ACCUMULATED-NII-PRIOR> 12,684,563
<ACCUMULATED-GAINS-PRIOR> (788,498)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,116,809
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3,065,181
<AVERAGE-NET-ASSETS> 121,009
<PER-SHARE-NAV-BEGIN> 9.68
<PER-SHARE-NII> 0.06
<PER-SHARE-GAIN-APPREC> (0.10)
<PER-SHARE-DIVIDEND> (0.05)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.59
<EXPENSE-RATIO> 2.18
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
DEAN WITTER INTERMEDIATE INCOME - CLASS B
ANNUAL NSAR 08/31/97 Y/E
</LEGEND>
<CIK> 0000839302
<NAME> DEAN WITTER INTERMEDIATE INCOME - CLASS B
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> AUG-31-1997
<PERIOD-END> AUG-31-1997
<INVESTMENTS-AT-COST> 166,465,908
<INVESTMENTS-AT-VALUE> 167,236,475
<RECEIVABLES> 5,103,466
<ASSETS-OTHER> 37,219
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 172,377,160
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,644,615
<TOTAL-LIABILITIES> 2,644,615
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 180,124,413
<SHARES-COMMON-STOCK> 16,985,340
<SHARES-COMMON-PRIOR> 22,243,950
<ACCUMULATED-NII-CURRENT> 52,362
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (11,214,797)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 770,567
<NET-ASSETS> 162,958,969
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 13,337,718
<OTHER-INCOME> 0
<EXPENSES-NET> 3,065,181
<NET-INVESTMENT-INCOME> 10,272,537
<REALIZED-GAINS-CURRENT> (2,567,762)
<APPREC-INCREASE-CURRENT> 6,828,218
<NET-CHANGE-FROM-OPS> 14,532,993
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (10,229,881)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 8,499,296
<NUMBER-OF-SHARES-REDEEMED> 13,839,797
<SHARES-REINVESTED> 587,192
<NET-CHANGE-IN-ASSETS> (39,178,336)
<ACCUMULATED-NII-PRIOR> 12,684,563
<ACCUMULATED-GAINS-PRIOR> (788,498)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,116,809
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3,065,181
<AVERAGE-NET-ASSETS> 185,679,429
<PER-SHARE-NAV-BEGIN> 9.39
<PER-SHARE-NII> 0.53
<PER-SHARE-GAIN-APPREC> 0.20
<PER-SHARE-DIVIDEND> (0.53)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.59
<EXPENSE-RATIO> 1.65
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
DEAN WITTER INTERMEDIATE INCOME - CLASS C
ANNUAL NSAR 08/31/97 Y/E
</LEGEND>
<CIK> 0000839302
<NAME> DEAN WITTER INTERMEDIATE INCOME - CLASS C
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> AUG-31-1997
<PERIOD-END> AUG-31-1997
<INVESTMENTS-AT-COST> 166,465,908
<INVESTMENTS-AT-VALUE> 167,236,475
<RECEIVABLES> 5,103,466
<ASSETS-OTHER> 37,219
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 172,377,160
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,644,615
<TOTAL-LIABILITIES> 2,644,615
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 180,124,413
<SHARES-COMMON-STOCK> 3,999
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 52,362
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (11,214,797)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 770,567
<NET-ASSETS> 38,430
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 13,337,718
<OTHER-INCOME> 0
<EXPENSES-NET> 3,065,181
<NET-INVESTMENT-INCOME> 10,272,537
<REALIZED-GAINS-CURRENT> (2,567,762)
<APPREC-INCREASE-CURRENT> 6,828,218
<NET-CHANGE-FROM-OPS> 14,532,993
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (83)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 3,993
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 6
<NET-CHANGE-IN-ASSETS> (39,178,336)
<ACCUMULATED-NII-PRIOR> 12,684,563
<ACCUMULATED-GAINS-PRIOR> (788,498)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,116,809
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3,065,181
<AVERAGE-NET-ASSETS> 23,906
<PER-SHARE-NAV-BEGIN> 9.68
<PER-SHARE-NII> 0.04
<PER-SHARE-GAIN-APPREC> (0.07)
<PER-SHARE-DIVIDEND> (0.04)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.61
<EXPENSE-RATIO> 2.02
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
DEAN WITTER INTERMEDIATE INCOME - CLASS D
ANNUAL NSAR 08/31/97 Y/E
</LEGEND>
<CIK> 0000839302
<NAME> DEAN WITTER INTERMEDIATE INCOME - CLASS D
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> AUG-31-1997
<PERIOD-END> AUG-31-1997
<INVESTMENTS-AT-COST> 166,465,908
<INVESTMENTS-AT-VALUE> 167,236,475
<RECEIVABLES> 5,103,466
<ASSETS-OTHER> 37,219
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 172,377,160
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,644,615
<TOTAL-LIABILITIES> 2,644,615
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 180,124,413
<SHARES-COMMON-STOCK> 508,841
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 52,362
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (11,214,797)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 770,567
<NET-ASSETS> 4,880,392
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 13,337,718
<OTHER-INCOME> 0
<EXPENSES-NET> 3,065,181
<NET-INVESTMENT-INCOME> 10,272,537
<REALIZED-GAINS-CURRENT> (2,567,762)
<APPREC-INCREASE-CURRENT> 6,828,218
<NET-CHANGE-FROM-OPS> 14,532,993
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (25,048)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 10,611
<NUMBER-OF-SHARES-REDEEMED> 9,547
<SHARES-REINVESTED> 2,476
<NET-CHANGE-IN-ASSETS> (39,178,336)
<ACCUMULATED-NII-PRIOR> 12,684,563
<ACCUMULATED-GAINS-PRIOR> (788,498)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,116,809
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3,065,181
<AVERAGE-NET-ASSETS> 4,864,254
<PER-SHARE-NAV-BEGIN> 9.68
<PER-SHARE-NII> 0.06
<PER-SHARE-GAIN-APPREC> (0.10)
<PER-SHARE-DIVIDEND> (0.05)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.59
<EXPENSE-RATIO> 1.11
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>