MT's official files as Prime Minister, 1979-90
MT's official files as PM can be read on this site as they are released, in full and free to all - the confidential files originally stored at No.10, the core record of her premiership.
The files have been copied at the British National Archives (TNA) at Kew in London and can be downloaded precisely as they appear in the reading room.
We are doing something more to help people make sense of this mass of information. The files are subject-based, logically enough, but that system makes it difficult to reconstruct the flow of paper across the Prime Minister’s desk at any point in time, depriving us of a sense of context and cross-winds, some of them overwhelming.
To combat this effect we are uploading a large selection of the most important documents from these files – thousands in total - to our powerful site database. You can search and sort by date, subject and other parameters, getting as close as anyone can now get to reconstructing the Prime Minister’s daily "Red Boxes", the rich diet of foreign and domestic policy papers submitted to her by the No.10 Private Office.
|File name||Title||Begins||Ends||Date of release||Any docs withheld?||File classification||Pages|
|PREM19/1371||Security (Irish terrorist activity in Great Britain) (Part 1A)||Begins: 1979 May 10||Ends: 1982 Aug 11||Date of release: Date of release: Retained||File classification: Retained Sec 3.4|
|PREM19/1372||Security (Irish terrorist activity in Great Britain; threat to Weston supermarkets) (Part 1B)||Begins: 1982 Sep 6||Ends: 1984 Feb 10||Date of release: Date of release: Retained||File classification: Retained Sec 3.4|
|PREM19/1622||Security (Judgement by European Court of Human Rights on Malone case: proposed legislation on interception of communications)||Begins: 1980 Sep 29||Ends: 1984 Jul 23||Date of release: 2014 Dec 30|
|PREM19/913||Security (Labour Party discussion document on the Security Services)||Begins: 1981 Feb 6||Ends: 1982 Feb 28||Date of release: 2012 Dec 28||File classification: Secret||Pages: 13|
|PREM19/362||Security (Leak in Guardian and Time Out of Ministerial discussion on civil nuclear power programme)||Begins: 1979 Dec 6||Ends: 1980 Mar 24||Date of release: 2010 Dec 30||File classification: Secret||Pages: 23|
|PREM19/356||Security (Leak of documents on defence expenditure to Press Association)||Begins: 1980 Oct 23||Ends: 1980 Dec 17||Date of release: 2010 Dec 30||File classification: Secret||Pages: 84|
|PREM19/1626||Security (Leak of information on sinking of Argentine warship General Belgrano in 1982 to Tam Dalyell MP: confession and trial of Clive Ponting) (Part 1)||Begins: 1984 Aug 10||Ends: 1985 Feb 2||Date of release: 2014 Dec 30||File classification: Secret||Pages: 294|
|PREM19/595||Security (Leak to 'The Times' of Cabinet proceedings on public expenditure)||Begins: 1981 Oct 21||Ends: 1981 Oct 28||Date of release: 2011 Dec 30||File classification: Secret||Pages: 18|
|PREM19/1636||Security (Leak to press on expulsion of Soviet Embassy officials in April 1985)||Begins: 1985 Apr 18||Ends: 1985 Jun 17||Date of release: 2014 Dec 30|
|PREM19/2849||Security (Leak to The Observer relating to Westland plc)||Begins: 1985 Dec 24||Ends: 1989 Jun 16||Date of release: 2016 Dec 30|
|PREM19/593||Security (Leaks about Civil Contingencies Unit (CCU) to Peter Hennessy of 'The Times'; investigation)||Begins: 1980 Jul 17||Ends: 1981 Feb 19||Date of release: 2011 Dec 30||File classification: Confidential||Pages: 36|
|PREM19/2493||Security (Links between Palestine Liberation Organisation (PLO) and other terrorist organisations: People's Front for the Liberation of Palestine operations in London)||Begins: 1979 Sep 28||Ends: 1988 Mar 17||Date of release: Date of release: Retained||File classification: Temporarily retained by Department|
|PREM19/2516||Security (Lord and Lady Rothschild)||Begins: 1987 Jun 8||Ends: 1987 Jul 17||Date of release: Date of release: Retained||File classification: Temporarily retained by Department|
|PREM19/589||Security (Lord Kagan)||Begins: 1980 Dec 15||Ends: 1981 Apr 16||Date of release: 2011 Dec 30||Any docs withheld? 2||File classification: Secret||Pages: 19|
|PREM19/2494||Security (Ministerial personal protection: security arrangements for overnight parking of Ministers' cars: VIP security)||Begins: 1979 Aug 28||Ends: 1987 Jun 12||Date of release: Date of release: Retained||File classification: Retained Sec 3.4|