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A briefcase left behind by infamous Cambridge spy Guy Burgess as he fled to Moscow in 1951 is among never-before-seen MI5 artefacts going on display at The National Archives in Kew, South-West London.

The MI5: Official Secrets exhibition, which features objects from MI5's private collection alongside declassified documents, opened at the National Archives in Kew, South-West London.

In collaboration with host The National Archives and prepared over several years by the agency's own archivists, "MI5: Official Secrets" is giving the public the chance to see equipment and ...

Mark Dunton, principal records specialist at the National Archives, said the exhibition is "genuinely groundbreaking". "MI5 used to really operate in secret, for so many years it was just referred ...

A briefcase left behind by infamous Cambridge spy Guy Burgess as he fled to Moscow in 1951 is among never-before-seen MI5 artefacts going on display at The National Archives in Kew, South-West London.