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

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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
B3476 163K New Guinea - Milne Bay: Wireless Telegraph Codes 1943 - 1945
A6122 972 Communist Party of Australia. Western Australia, Carlisle Branch 1949 - 1958
A3092 221/10/1/6 [Title exempt] 18 Jul 1958 - 26 Aug 1958
A10872 100/1/8 Australian service in wartime [Australian Secret Intelligence Service, ASIS] 1952 - 1981
AWM54 179/5/1 PART 5 [Chemical Warfare - Trials:] Reports from the Chemical Defence Board, Research and Experimental Section, Innisfail, Queensland [Part 5 of 10] 1944 - 1944
AWM54 179/5/14 PART 9 [Chemical Warfare - Trials:] Dugway Proving Grounds. Mobile Chemical Warfare Section Unit, 1945-1946 1945 - 1946
AWM54 179/3/3 PART 4 [Chemical Warfare - Types of Agents:] Canada, Sub-Committee on Physiological Aspects of Chemical Warfare, Nov 1943 - Report on Ammonia Gas 1943 - 1943
A6122 774 Communist Party of Australia. NSW Cockatoo Dock Branch 1949 - 1949
A6126 662 BALZI, Gildo 01 Jan 1800 - 01 Jan 1800
AWM54 179/1/22 [Chemical Warfare - General:] Headquarters, United States Army Services of Supply, South West Pacific Area, Office of the Chief Chemical Officer: Chemical Warfare Intelligence Digest, Nov 1944 1944 - 1945
A1838 3027/2/1 PART 39 Malaysia - Political - General 1969 - 1969
A1838 3107/3/1/4 China - Communist Party - Evolution of Central Organisations of Chinese Communist Party 1921-58 1961 - 1961
AWM54 179/5/10 PART 10 [Chemical Warfare - Trials:] Headquarters, San Jose, Project Division. Reports by technical staff, San Jose Project 1945-1946, Bi Weekly progress reports 1945, San Jose Project reports, Field Tests, 1944 [Part 10 of 13] 1944 - 1946
A1209 1960/446 Plan for defence of South East Asia MPO Plan 4/60 1960 - 1960
A6122 566 CPA Qld Women's Sub-Committee 1954 - 1955
A6126 1026 Kay, Helen 1956 - 1956
A5799 208/1953 Antarctica 1953 - 1953
A7452 A187 PART 1 Vietnam 1967 - 1975
A5799 276/1952 JIB - [portion of title exempt] 1952 - 1952
A1838 3127/2/1/8 PART 2 ROK [South Korea] Political - General - Intelligence reports 1980 - 1980