An MI5 agent “deliberately and repeatedly lied” after confirming to a journalist that a violent and misogynistic neo-Nazi was operating as an undercover source, a court has heard.

MI5 is facing fresh scrutiny in the case of a violent neo-Nazi agent after a High Court judge said he had "no confidence" in the Security Service's account of how a senior officer gave false ...

MI5 is facing fresh scrutiny in the case of a violent neo-Nazi agent after a High Court judge said he had "no confidence" in the Security Service's account of how a senior officer gave false evidence.