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
HM Melbourne Assessment Prison to provide statewide assessment and orientation services for all male prisoners received into the prison system. In 1997 the prison became the main reception prison for all male prisoners in Victoria. Initial planning for the prison commenced in 1974. Construction commenced in December 1983 and was completed in 1989 at a cost of A$80m. The prison was officially opened on 6 April 1989, and received its first prisoners on 29 May 1989. At least two prisoners have escaped from the Melbourne Assessment Prison. In one incident explosives smuggled into the unit were used to blow open the armored plastic windows