Jan. 14 (UPI) --Documents newly declassified by MI5, Britain's internal intelligence agency, show the late Queen Elizabeth II was not informed for almost 10 years that a member of her staff had spied ...

Anthony Blunt, who worked at Buckingham Palace as Surveyor of the Queen’s Pictures, was secretly a Soviet spy during WWII.

Some MI5 material relating to its involvement with a teenager who was charged with terrorism before taking her own life is ...

Rookie wartime MI5 "watchers" were advised they needed to be prepared to offer a big tip if they had to tell a taxi driver to "follow that cab" when pursuing a suspect, newly declassified documents ...

Confessions of double agents and tips for new spies have been released as part of a tranche of recently-declassified documents from MI5. The documents are part of a new exhibition on display at the ...

Kevin Winters, of KRW Law, was speaking as it emerged former gangster Paul Cleeland has admitted killing five republicans and loyalists during the Troubles in a sworn affidavit. He has also confessed ...

Jonathan Hall KC warned that football hooligans and criminal gangs could technically be classed as terrorists under Sir ...

A closer look at recently declassified MI5 files on the intelligence failure surrounding the five "Cambrdige spies" ...

A World War II-era tailing guide is among declassified records shedding light on spy game in MI5: Official Secrets, at the National Archives.

Newly released MI5 files from the National Archives reveal that British intelligence monitored potential connections between ...

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The PSNI has refused to say if MI5 officers were involved in a stop and search of republican mourners returning from the wake ...