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
18

years

is the average age of decisions to closed files citing this reason

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

Series Control Symbol Title Contents dates
A452 1966/2447 West Irian - Reports from [part of title exempt], 1966 [3cms] 1965 - 1966
A1838 694/2/3/4 PART 8 [Modified title: Exchange of information] 1973 - 1973
A12389 A33 ASIO Schedule for the Classification of Correspondence 1975 - 1975
A6119 815 Judah WATEN volume 4 1960 - 1961
A6122 945 Communist Part of Australia. Electric Press 1949 - 1958
AWM54 244/2/8 [Demolitions - Schemes:] Demolition Plans: Victoria Bridge, Brisbane Fortress Area, Belt "G", 17 Dec 1942 1942 - 1942
A6122 1127 Communist Party of Australia. Eureka Youth League. Victoria 1949 - 1956
A1838 TS851/12/23 Joint Intelligence Committee weekly review of current intelligence on Middle East 1956 - 1957
A1838 3034/10/1/8 PART 1 ANNEX Indonesia - Relations with Australia - Official discussions with Indonesia 1972 - 1979
A1533 1956/1470 [Modified title: CIS co-operation with ASIO - complaint regarding SJ MARUZEWSKI, aka MARUE] 1956 - 1956
A10872 100/3/9 Australian Secret Intelligence Service (ASIS) - Name of individual [imposed title, original title wholly exempt] 1957 - 1958
A6122 554 CPA - [Communist Party of Australia] Victoria Propaganda Committee 1949 - 1949
AWM54 179/5/8 PART 17 [Chemical Warfare - Trials:] Munitions Supply Laboratories. Abstract reports indexed in records of Chemical Defence Board [Part 17 of 23] 1945 - 1945
AWM54 179/5/8 PART 10 [Chemical Warfare - Trials:] Munitions Supply Laboratories. Abstract reports indexed in records of Chemical Defence Board [Part 10 of 23] 1944 - 1944
A6122 838 Communist Party of Australia - (South Australia) Queenstown 1949 - 1957
A6122 1196 Recording of ASIS personnel [Australian Secret Intelligence Service, Australian Security Intelligence Organisation] 1955 - 1955
AWM54 244/2/11 [Demolitions - Schemes:] Demolition - Albert Railway Bridge, Indooroopilly, Brisbane Fortress Area, Belt "G", Jan 1943 1943 - 1943
A2031 36/1952 Deception Planning 1952 - 1952
A1838 3027/2/1 PART 25 Malaysia - Political - General [3cm] 1965 - 1966
A4529 10/1/2/1955 PART 2 Indo-China: Information for JIB [Joint Intelligence Bureau] 1955 - 1956