Larry Marley to come to fruition, he joined the blanket protest in the Maze's H-Blocks for four years. In September 1983, he helped Brendan McFarlane, Bobby Storey and Gerry Kelly to orchestrate the successful mass escape of 38 republican prisoners from the Maze. It was the largest prison escape in British penal history. According to a BBC documentary about the escape, Marley was the mastermind, having come up with the idea with the aim of embarrassing British Prime Minister Margaret Thatcher, as the Maze was considered to be one of the world's most secure prisons. Marley, unlike his three co-conspirators, did not
History of Fremantle Prison enquiry investigated the Fremantle Prison riot that occurred at the start of the year. The report suggested that little evidence supported the escape plan theory reported by the media, but that the riot was largely the result of an incident of that morning involving the mistreatment of a prisoner and his subsequent release into Three Division yard. The state government made the decision to decommission Fremantle Prison in 1983, but it remained in operation until 30 November 1991. Prisoners were moved to a new metropolitan maximum security prison at Casuarina and the prison was transferred to the Building Management Authority.