The high court has ordered a “robust and independent” investigation into how MI5 gave false evidence to multiple courts after ...

The judgement comes after the BBC revealed MI5 had given false evidence to three courts about a neo-Nazi agent.

A decision on whether to issue contempt of court proceedings over false evidence given to the High Court by an MI5 officer ...

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

All 25 passengers - personnel from MI5 , British Army and the Royal Ulster Constabulary - were killed, along with the helicopter's four crew members.

Unprecedented probe was led by MI5, UK's domestic security agency, and is understood to have lasted for nearly two ...

The UK is set to significantly enhance its security measures in the wake of increasing threats both domestically and ...

According to the newly announced National Security Strategy, the major threats to the UK are nuclear war, international war, hostile states and crime, artificial intelligence, new chemical and ...

Britain has appointed Blaise Metreweli, 47, as the first female head of the Secret Intelligence Service, known as MI6. Currently the agency’s head of technology, or “Q”, Metreweli joined in 1999 ...

MI5 could still face contempt of court proceedings following revelations that the intelligence agency provided incorrect ...