Ronald De Souza was arrested in 1972 with five friends and charged with attempting to rob corrupt police officer DS Derek Ridgewell

The last convicted member of the Stockwell Six, a group of young black men falsely accused of trying to rob a corrupt police officer more than half a century ago, has had his case referred back to the court of appeal.

Ronald De Souza was arrested along with five friends and charged with attempting to rob the now notorious police officer DS Derek Ridgewell in 1972. They were put on trial at the Old Bailey largely on his word. All pleaded not guilty.