Large scale document archive

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.

This is the first time in Britain - in fact as far as we can tell, in any country - that the declassified archive of a head of government has ever been published in full, paper or online.

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.

list & links to the PM's files

Secret no more


Below are links to the downloadable files in numerical order. The subject terms are those used in the original filing system. Files held back from release are listed in red.

An average file has around 200 pages.

You can read here an account of how filing worked at No.10, and the system for archiving MT's Prime Ministerial papers, both of which had their quirks.

Some of these downloads are very big, as large as 75MB, though most are in the range 1-10MB. To keep sizes down, images have been compressed, though legibility should never be a problem. High quality copies can also be supplied, where a need is established, on application to the site editor.

Where documents within a file have been selected for the site database, they can easily be viewed by clicking the link after the file name ("Selected PREM19/959"), as well as via conventional searches from the archive search screen. Over time most files will have had documents selected in this way, but it will take time and care is being taken not to allow the site database to become so large as to be unmanageable.

You can sort each column by clicking on its title in bold at the top, a powerful tool to find all the files on a particular subject over several years.

You can also search the list from the box on the right. The term "Public Spending", for example, will produce all the parts of the main file on that topic.

Chancellor of the Exchequer's Private Office files, 1979-89

1979-89: Chancellor's Private Office files [links to hundreds of digitised files from the Chancellorships of Sir Geoffrey Howe and Nigel Lawson]

engagement diaries

An alternative way through the material is to read MT's engagement diaries, jumping day to day.

The engagement diaries link directly to relevant documents in the site database, so this is a good way to recover the perspective from the Red Box.


File name Title Begins Ends Date of releasesort descending Any docs withheld? File classification Pages
PREM19/3495 Prime Minister (Prime Minister's weekly meetings with Cabinet colleagues and Parliamentary business managers) 1982 Jun 30 1991 Oct 17 2017 Jul 20 Secret 123
PREM19/3093 National Health (Expenditure and efficiency in the National Health Service (NHS): implementation of NHS reforms) (Part 23) 1989 Nov 1 1990 Mar 30 2017 Jul 20 3 Confidential 210
PREM19/3334 Foreign Policy (Relations between UK, France and Federal Republic of Germany) 1987 Apr 3 1991 Feb 19 2017 Jul 20 3 Top Secret 43
PREM19/3539 Social Services (Change in the pension age) 1989 Jun 9 1991 Jan 23 2017 Jul 20 Secret 70
PREM19/3143 Prime Minister's Tours Abroad (Prime Minister's visit to the Conference on the Security and Cooperation in Europe (CSCE) Summit in Paris, November 1990: administrative arrangements) 1990 Oct 17 1990 Nov 26 2017 Jul 20 2 Confidential 125
PREM19/2807 Prime Minister (Prime Minister's meeting with William Schreyer, Chairman of Merrill Lynch, 6 July 1989) 1988 Jun 6 1989 Jul 6 2017 Jul 20
PREM19/3221 Bangladesh (UK/Bangladesh relations; aid to Bangladesh; internal situation) 1979 May 5 1991 Feb 18 2017 Jul 20 Confidential 286
PREM19/3429 Local Government (Relations between central and local government: local authority expenditure; Local Government Review; structure of local government) (Part 38) 1990 Mar 1 1991 Apr 24 2017 Jul 20 Secret 423
PREM19/2927 Commonwealth (Commonwealth Heads of Government Meeting (CHOGM), Kuala Lumpur, Malaysia, October 1989) (Part 16) 1989 Oct 1 1990 Oct 24 2017 Jul 20 3 Secret 310
PREM19/3494 Prime Minister (Policy Unit briefing for PM: general topics) (Part 2) 1987 Apr 1 1991 Jan 29 2017 Jul 20 Secret 269
PREM19/3092 National Health ( Industrial action in the National Health Service (NHS): NHS workers pay (except nurses)) (Part 3) 1984 Mar 9 1990 Jan 29 2017 Jul 20 Secret 420
PREM19/3333 Foreign Policy (Allegations concerning war crimes: War Crimes Inquiry; War Crimes Bill) (Part 3) 1990 Jan 1 1991 May 1 2017 Jul 20 Confidential 212
PREM19/3142 Prime Minister's Tours Abroad (Prime Minister's visit to Paris to attend the Heads of Government dinner, November 1989: administrative arrangements) 1989 Nov 15 1990 Jan 10 2017 Jul 20 2 Confidential 18
PREM19/3382 Home Affairs (Probation Service pay: reorganisation of the Probation Service) 1979 Jun 5 1991 Jun 11 2017 Jul 20 Confidential 164
PREM19/1875 Nigeria (UK/Nigeria relations: internal situation) (Part 1) 1979 Aug 16 1986 Oct 3 2017 Jul 20