The Security Service gambled BBC correspondent Daniel De Simone had no evidence. A note, an email and a recording proved it ...

The woman at the centre of a case in which MI5 has admitted giving false evidence to three courts says she wants the service ...

The secret service faces serious questions after it lied to a court about how it dealt with a neo-Nazi spy. Robert Verkaik says the organisation has a long history of handling rogue agents and rogue ...

In an unprecedented humiliation, the security service apologises for “inaccurate” evidence.

Sir Ken McCallum under pressure after Security Service found to have lied in attempt to prevent BBC from unmasking one of its ...

Ken McCallum contacted Tim Davie directly after corporation began investigating activities of agent who had attacked ...

MI5 has admitted it provided “incorrect information” to the English courts in a case concerning an agent accused of domestic abuse. Sir Ken McCallum, the security service’s director-general, ...

Complete with drawings detailing how best to tail the suspect, the country's MI5 security services issued the World War II-era guide to "observation" work to officers unfamiliar with this key ...

Complete with drawings detailing how best to tail the suspect, the country’s MI5 security services issued the World War II-era guide to “observation” work to officers unfamiliar with this ...

No MI5 officers were present, after we refused a request for the meeting to be secret. After exchanging strained smiles, we got down to business - and proved to them that the Security Service had ...

Ken McCallum, director general of MI5, worked closely with the senior officer who called me Beth's case will now head back to the specialist court, which is investigating if the Security Service ...