Human rights campaigner Peter Tatchell signs petition for disclosure of Jeremy Bamber evidence

Jeremy Bamber.

A petition to get Essex police to release evidence relating to the case of Jeremy Bamber has been signed by a prominent human rights campaigner.

It's 30 years to the day Mr Bamber was arrested for murdering four members of his family, a crime he was found guilty of but has always said he didn't commit.

He's made multiple appeals against his conviction, but all have been turned down.

Click below to watch a full interview with human rights campaigner, Peter Tatchell: