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

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

The high court has ordered a probe into how MI5 gave false evidence after a BBC investigation revealed MI5 had lied to three ...

Premature’ to decide whether MI5 should face contempt probe in BBC injunction case, judges rule - An injunction was granted ...