Families bereaved by the Manchester Arena bombing say MI5 failed them and must be fully included in a new law designed to ...

The law would create a new legal duty on public bodies to tell the truth during investigations.

MI5 lied to three courts while defending its handling of a misogynistic neo-Nazi state agent who attacked his girlfriend with a machete, the BBC can reveal. Arguing for secrecy, the Security Service ...

The case centres around a BBC investigation over how an MI5 agent used his role to abuse his girlfriend An appeal for information has been sent to all MI5 staff over false evidence the service gave to ...

The watchdog charged with holding MI5 to account rewrote a report into the handling of a violent neo-Nazi agent after the Security Service gave it false information, the BBC can reveal. An early draft ...

The home secretary has said MI5 giving false evidence to multiple courts was a "serious failing", as she accepted a further investigation should take place. Yvette Cooper, who is responsible for the ...

The major investigation into the state agent in the IRA known as Stakeknife has revealed MI5 had a bigger role in his handling than previously claimed. The final report of Operation Kenova also said ...

An appeal for information has been sent to all MI5 staff over false evidence the service gave to three courts in a neo-Nazi spy case. MI5's regulator is investigating how it came to make false claims ...