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
22.178217821782177

years

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

Series Control Symbol Title Contents dates
A5799 4/1961 Theatre estimate to be used in the development of MPO plan 6/61 [and supplement no. 1] 1961 - 1961
A10872 100/3/5 Australian Secret Intelligence Service (ASIS) - Names of individuals [imposed title, original title wholly exempt] 1957 - 1960
A432 1969/3072 ATTACHMENT 2 W.G. Burchett 1953 - 1954
A1838 100/12/4 SIFE [Security Intelligence Far East] Summaries [Far East] [Communist activities in Asia] 1952 - 1959
A5954 2365/10 Defence Signals Branch - [remainder of title exempt] 1954 - 1954
A6122 870 CPA [Communist Party of Australia] - (Western Australia) - Leederville Branch 1949 - 1956
A6122 1128 Communist Party of Australia. Wharf Branch Victoria 1949 - 1956
A6119 3242 FALCONER, James Albert - Misc Papers 1970 - 1970
A6122 197 Australia Meat Industry Employees' Union Queensland. 1953 - 1954
A1838 TS663/11 Intelligence conference Melbourne, November 1958 and Washington, 1962 and London, 1966 1958 - 1967
A1209 1960/17 Main trends in Soviet capabilities and policies 1958-1963 [part of title exempt] 1958 - 1958
A446 1984/78816 ADP - Investigations branch programs 1981 - 1986
AWM54 179/5/8 PART 15 [Chemical Warfare - Trials:] Munitions Supply Laboratories. Abstract reports indexed in records of Chemical Defence Board [Part 15 of 23] 1945 - 1945
A6119 276 CHRISTESEN, Clement Byrne - Part 2 1949 - 1954
A6122 964 Communist Party of Australia. Victoria, Port Melbourne Branch 1949 - 1958
A12389 BB4 The [portion of title exempt] Case - January 1975 1966 - 1975
A1838 563/10/10/10 PART 1 SEATO - trends and highlights in Communist propaganda 1956 - 1957
A816 25/301/502 Vladimir ZOUHAR [ZOUCHER ZOUCHAR] 1951 - 1951
A1209 1963/6286 [Title Exempt] 1963 - 1963
A6119 804 OLLIER, Rose Marie Volume 5 1953 - 1958