Jeremy Corbyn met a Soviet agent from Czech security services during the Cold War and tipped him off about MI5 clampdown

Jeremy Corbyn warned a Soviet-backed spy about British intelligence activity at the climax of the Cold War, according to secret documents.

The Labour leader met the Czech agent at least three times after being vetted by communist handlers in 1986, papers reveal.

Two meetings took place in the heart of British democracy – the House of Commons. And in records of the meeting an espionage agent noted how Mr Corbyn was ‘occasionally explosive’.

Why isn’t he in jail?