Colin Watson was educated at the Whitgift School in South Croydon, London. During his career as a journalist he worked in London and Newcastle-on-Tyne, where he was a leader-writer for Kemsley Newspapers. His book Hopjoy Was Here (1962) received the Silver Dagger Award. He was married, with three children, and lived in Lincolnshire. After retiring from journalism he designed silver jewellery. As well as a series of humorous detective novels set in the imaginary town of Flaxborough, featuring Inspector Purbright, Watson also wrote and later revised a study of detective stories and thrillers called Snobbery with Violence.