A FORMER child protection officer claimed last night a Special Branch detective held a gun to his head to stop him investigating a VIP paedophile ring. Chris Fay said he was pinned to a wall and throttled before being given a chilling warning to “back away” from allegations surrounding the notorious Elm Guest House in Barnes, south-west London. Young boys in care were allegedly taken there in the Eighties to be abused by high-profile MPs and other powerful establishment figures. Mr Fay, who worked for the now-defunct National Association of Young People In Care, accused the Metropolitan Police of acting...