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 High Court has ordered a "robust and independent" new investigation into how MI5 gave false evidence to multiple courts, after rejecting two official inquiries provided by the Security Service ...

MI5 gave evidence to all three courts, saying that it had never breached its core secrecy policy of neither confirming nor denying (NCND) that X was a state agent.

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

The horror of Kincora: MI5, Mountbatten, Ian Paisley, the Orange Order and the sexual abuse of children during Ulster’s Troubles ...

When the BBC revealed that MI5 had lied to three courts, the Security Service apologised for giving false evidence - vowing to investigate and explain how such a serious failure had occurred. But ...

The Home Secretary has said she is “deeply concerned” that MI5 gave false evidence to the High Court and that the Government accepts a further investigation should take place.

MI5 previously said there had been ‘failings and errors’ in legal proceedings related to an alleged source accused of abusing ...

Professor Anthony Glees, from the University of Buckingham, told the Express that the UK appears “vulnerable” and MI5 will “absolutely” be preparing for a heightened Iranian threat.

A victim of abuse at Kincora Boys' Home has received an undisclosed settlement after claims a paedophile housemaster was protected from being prosecuted due to being an MI5 agent. Gary Hoy, 63, sought ...

The MI5 officer looking into the Mitrokhin lead then discovered another problem – Norwood was still alive and living in a semi-detached home in London’s suburbs.