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
Dispersal prison core selection of five still remaining. During the 1960s in Britain, several notorious and high-profile prisoners escaped from jails across the United Kingdom (Charles Wilson, Ronnie Biggs and George Blake). After the sensational escape of George Blake, a report was commissioned by the government to be chaired by Earl Mountbatten. The report recommended that all prisoners be categorised either A, B, C or D, according to their security risk, escape risk and danger to the general public. Category A prisoners were those deemed to be the worst and Category D prisoners were afforded the right to wander around the prison