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

The files about royal art historian Anthony Blunt are among a trove from the intelligence agency MI5 released Tuesday by Britain’s National Archives. They shed new light on a spy ring linked to ...

Though many apply, only a few have the skills and patience to make it as a “watcher”, an MI5 training manual published for the first time by the National Archives reveals. Despite the rise in ...

Widening the definition of terrorism could overwhelm the police and MI5, the lawyer carrying out a review of the definition has warned. Jonathan Hall KC, the independent reviewer of terrorism ...

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 ...

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 ...

The guidance is contained in a booklet for recruits during World War Two, which will go on display at the National Archives in Kew, west London Rookie wartime MI5 "watchers" were advised they ...

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 ...

However, a Second World War guide produced by MI5 for prospective agents concluded that the ideal “watcher” was “born and not made”. The 17-page guide, which was compiled for “officers ...

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or ...

Police could be ‘overwhelmed’ if the definition of terrorism is expanded, the terror watchdog has warned (Kirsty O’Connor/PA) Widening the definition of ...

An English career criminal has claimed he was recruited to murder five people on behalf of MI5 in the early days of the Troubles. The startling hit-man admission has been made in a sworn affidavit ...