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CASES FROM THE NATIONAL ARCHIVES

The National Archives holds more than 5,000 declassified Security Service files dating from the Service's earliest days through to the late 1950s. More are being released each year.

These pages provide some examples of MI5 documents from The National Archives, illustrating the careers of three key 20th century spies.

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Women in Defence Awards 2018

The winners of the Women in Defence UK Awards 2018 were announced on 6 November 2018 by the Secretary of State for...

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Message of Condolence

MI5 salutes Jeremy Heywood in gratitude for the life and service of a truly great public servant.

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