The British state has an evolved and sophisticated suite of powers and tools - but the shape of the threat has shifted ...

At the heart of the case is the violent abuse of a woman by a state agent under MI5's control. After the BBC began ...

A ruling by London's High Court cited the domestic intelligence agency's failure to explain why representatives had ...

The home secretary says the government accepts the high court’s ruling that an independent investigation should take place.

He adds: “MI5 and the British government worked together to make sure the people of Northern Ireland, England, Scotland and Wales had no idea what was going on. The British government protected MI5.

MI5's entire operational plan involved a sustained attempt to persuade me to stop doing a story by disclosing that X was an agent. Second, the report said "it was not MI5 policy to record all such ...

An MI5 agent “deliberately and repeatedly lied” after confirming to a journalist that a violent and misogynistic neo-Nazi was operating as an undercover source, a court has heard.

MI5 lied "deliberately and repeatedly" as it tried to defend its handling of a neo-Nazi agent who abused women, the BBC has told a panel of High Court judges.

MI5 has offered an “unreserved” apology to the High Court saying there had been “failings and errors” in legal proceedings related to an alleged source accused of abusing two women. In ...

MI5 has offered an “unreserved” apology to the High Court saying there had been “failings and errors” in legal proceedings related to an alleged source accused of abusing two women. In 2022, ...