Explore the ever-changing world of espionage and security threats through original case files, photographs and papers, alongside the real equipment used by spies and spy-catchers over MI5’s...

Jan 14, 2025 · Showcasing a compelling collection of original case files, photographs and papers, alongside authentic espionage equipment used by spies and spy-catchers over the last 115 years, MI5: Official...

Discover how MI5 works to protect against threats to national security through intelligence gathering techniques, partnerships and legislation. Find out how you can play your part in keeping the...

Step inside the hidden world of MI5 and explore the extraordinary stories behind the security of a nation.

Records of the Security Service, better known as MI5, are identified at The National Archives by the department reference KV. Some records have been deliberately destroyed whilst others...

Jan 14, 2025 · The National Archives is the UK government's official archive. Our main duties are to preserve Government records and to set standards in information management and re-use. ... will feature in the forthcoming major exhibition at The National Archives, MI5: Official Secrets, which opens in the spring. The exhibition will mark the first time MI5 ...

Over 100 Security Service (MI5) files are being released today. What do they reveal?...

Oct 11, 2022 · Today we have released 147 MI5 files, mostly from the 1960s and 1970s, with some files from earlier years. They have all been digitised and can be downloaded from Discovery, our catalogue. As...

Sep 24, 2019 · MI5 has released a new batch of historical files to The National Archives, where they are now available to view. The majority relate to the Portland spy ring.

Oct 23, 2015 · MI5 has released a further batch of 103 historical files. These are now available to view alongside Cabinet Office and Foreign and Commonwealth Office files at The National Archives, and...