Bob Shepherd is an ex-SAS soldier with more than a decade of experience in commercial security. As a member of the SAS, Bob participated in operations including the Iranian embassy siege in London, the Falklands War, the First Gulf War and Bosnia. He joined the Circuit in 1994, making him one of a handful of working security advisors to have witnessed the Circuit's transformation from a niche business catering primarily to executives, royalty and the superrich to a multi-billion pound military appendage.