According to the bio on his website: "Graham Ison was in the regular army before joining the Metropolitan Police. During his career in Scotland Yard’s Special Branch, he was involved in several famous espionage cases and spent four years at 10 Downing Street as protection officer to the prime minister. He later guarded crowned heads and US presidents during their visits to Britain, and served as second-in-command of the Diplomatic Protection Group, the unit that guards London’s embassies.
A member of the Society of Authors and an occasional obituarist for The Daily Telegraph, Graham Ison is now a full-time author and after dinner speaker. He has published numerous novels, scripted for Thames Television's The Bill, and has contributed articles to the national press on policing, and law and order.
Graham Ison is one of the most popular authors at public libraries in the United Kingdom, according to independent public lending rights records.
He is an honorary agent of the US Army Criminal Investigation Command. He is also a member of the Royal Society of Literature."