33(1)(a)

contains information or matter the disclosure of which under this Act could reasonably be expected to cause damage to the security, defence or international relations of the Commonwealth
— Section 33(1)(a) of the Archives Act 1983

1010

closed files

cite this as a reason you're not allowed to see them
60

years

is the average age of closed files that cite this reason, based on the date of their earliest content
108

series

contain closed files that cite this reason
26.178217821782177

years

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Here's some examples of closed files that cite this reason…

Series Control Symbol Title Contents dates
A1838 563/10/13 PART 1 Communism - SEATO - summaries 1956 - 1957
A1838 3027/2/1 PART 27 Malaysia - Political - General [396pp] 1967 - 1967
A432 86/9712-1 [Title Exempt] 11 Apr 1986 - 17 Apr 1986
A1209 1957/5849 SEATO. Military Staff Planners' Conference, Manila. Psychological warfare report 1955 1955 - 1955
A10756 LC209 PART 1 East Timor [Submission No. 1865 refers] 05 Feb 1976 - 31 Aug 1982
D399 SA1982/16159 Deceit against the Spanish Community - Adelaide South Australia 1979 - 1984
A4311 686/11 [Research Methods Conference, Melbourne, November 1958]. On Processing Intelligence Information by [portion of title exempt] 5th September 1958 1958 - 1958
A6122 772 Communist Party of Australia. NSW Matraville/La Perouse Branch 1949 - 1949
A1209 1960/92 PART 2 JIC London - weekly review of current intelligence - 1960 1960 - 1960
A5954 1681/1 Reports by Secretary Department of Defence on visit abroad 1949. The restoration of the flow of United States classified information to Australia 1949 - 1949
A7936 B/9/3 Unattached list [portion of title exempt] 1957 - 1969
A10500 D54 Protective Security Review - Espionage 1978 - 1978
A6122 495 Commonwealth Party of Australia - Branches Victoria - SEC Green Street Branch 1949 - 1949
A6122 868 CPA [Communist Party of Australia] - (Western Australia) - South Perth branch 1949 - 1956
A6283 146 Liaison with overseas intelligence services Vol.4 01 Jan 1800 - 01 Jan 1800
AWM54 179/5/1 PART 6 [Chemical Warfare - Trials:] Reports from the Chemical Defence Board, Research and Experimental Section, Innisfail, Queensland [Part 6 of 10] 1944 - 1944
AWM54 179/1/4 PART 1 [Chemical Warfare - General:] Deputy Director of Military Operations: Correspondence on the subject of chemical warfare [Part 1 of 2] 1943 - 1944
AWM54 179/5/1 PART 7 [Chemical Warfare - Trials:] Reports from the Chemical Defence Board, Research and Experimental Section, Innisfail, Queensland [Part 7 of 10] 1944 - 1944
A12389 A103 ASIO and ASIS document: Report on Scientific and Technical Resources dated July 1976 1976 - 1976
A5882 CO862 Continental shelf - Common boundary Indonesia/Australia (Including the Territory of Papua /New Guinea) [3.5cm] Feb 1970 - Oct 1972