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
A6122 1080 Communist Party of Australia (illegal apparatus) expenditure 1949 - 1956
A10872 100/1/5 Australian Service - Organisation questions [Australian Secret Intelligence Service, ASIS] 1957 - 1958
A6122 766 Communist Party of Australia - NSW Star Branch 1949 - 1949
A7936 B/19/1 PART 2 Codewords and nicknames 1952 - 1977
A6122 780 Communist Party of Australia. NSW Redfern Branch 1949 - 1949
A816 11/301/1081 ANZUS Council - Proposed meeting, November 1956, in Washington 1956 - 1957
A12389 BB12 ASIS Station [portion of title exempt] Background - January 1975 1955 - 1975
A1838 383/4/1/4 Top secret douments - North Vietnam 1961 - 1961
A1838 TS663/4 PART 3 Australian Defence Organisation - Joint Intelligence Committee [5cms] 1956 - 1961
A7452 A150 [Title exempt] 1977 - 1977
A2539 B1972/23 Report of Australian Delegation on the Conference on certain Seabed Boundaries between Australia and Indonesia and Seabed Boundaries between Australia and Papua New Guinea - Part 2 1972 1972 - 1972
A9954 SE/13/D9 Nature and extent of the Communist subversive threat in Pakistan: paper contributed by Pakistan 28 Aug 1960 - 28 Aug 1960
A816 11/301/776 Prime Minister's discussions in London January 1951 1951 - 1951
A12381 4/4 PART 2 Joint Intelligence Organisation - Office of Current Intelligence - Daily Bulletins No 48/1975 (dated Thursday 17 April 1975) to No 106/1975 (dated Monday 18 August 1975) 1975 - 1975
A12389 BB10 Financial Arrangements for ASIS March 1975 - March 1975 1974 - 1975
A6122 1008 Communist Party of Australia. Security within Communist Party of Australia 1949 - 1956
A6122 1095 Communist Party of Australia - History of - Volume 1 1949 - 1956
AWM54 179/5/4 [Chemical Warfare - Trials:] Report on Chemical Warfare Physiological Investigations carried out at Townsville, Queensland 1943 - 1943
A6122 466 Communist Party of Australia - relations with Communist Party of the Soviet Union 1949 - 1949
A12389 BB3 The [portion of title exempt] Case - January 1975 1970 - 1975