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The National Archives

Explore 1,000 years of history

News

Latest release of files from MI5

A blurred, moving figure can be seen holding an archive box in the aisle between two rows of archive shelving.

Today, we have made available a selection of previously top secret files from MI5. The files in this release cover a range of events and individuals dating from 1933 to 1975.

Collection blog

A file release from MI5

A photograph of a man and a woman walking down a London street. They are both wearing overcoats and a hat. They are unaware that they are being photographed.

Over 100 Security Service (MI5) files have been released at The National Archives covering a wide range of subjects and individuals.

Explore the collection

Bundles of papers and parchment records tightly packed together.

Choose a topic or time period and start exploring some of our most important and unusual records.

On the Record Podcast

A black and white photo of people celebrating. Text reads, 'on the record'

The National Archives presents On the Record, a podcast that unearths the real life stories found in our vast collections.

Archives sector

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Education

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