Muslim extremists at a Leicestershire jail have turned part of the prison into a “no-go zone” for non-Muslims, and are running an entire block under Sharia law, prison union leaders have claimed. Non-Muslim inmates at HMP Gartree, a maximum security prison, are said to have to conform to rules set by Muslim inmates, and are refusing to be moved to the block in question for fear of being forced to convert to Islam. The fears were raised following an inspection of the prison by leaders of the Prison Officers’ Association. A source told The Sun: “It is so bad non-Muslim prisoners are refusing to move there as they feel intimidated. “There is huge pressure put on them to convert and a threat of violence if they don’t. “The Muslim gangs have their own rules and use Sharia law to sort out disagreements. “In effect, they are setting up their own prison within a prison. “There have been stories about non-Muslim inmates being barred from putting up topless pictures of women in their cells and even showering naked.” HM Gartree houses a number of notorious Islamic terrorists, including Michael Adebolawe, who hacked to death Fusilier Lee Rigby outside his barracks in London in