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

Senior judges held out the prospect of holding MI5 officers in contempt as they ordered an independent investigation into how ...

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

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

Three High Court judges will rule at 14:00 BST on what to do about false evidence given by MI5 to three courts. MI5 stands ...

It emerged this year that evidence given by the security agency to an injunction hearing in 2022 was false. The Home ...

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

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 ...

Premature’ to decide whether MI5 should face contempt probe, judges rule - MI5 previously said there had been ‘failings and ...