CHRIS CLARK was a policeman for twenty-eight years. He joined Norfolk Constabulary as a constable in 1966, proudly wearing its uniform until 1994. As well as serving as a beat officer, he also worked in Major Incident rooms and as a Royal Protection Officer. His chief responsibility, however, was in intelligence gathering and dissemination, helping to steer police towards an understanding of the travelling criminal who crosses boundaries at will. As an Intelligence Officer Chris built alliances with his counterparts in surrounding counties, Regional Crime Intelligence Offices and the Intelligence Office at New Scotland Yard. Now retired, he has spent three years using his unique expertise to re-investigate cold cases. This book is the result of his dogged pursuit of the longsuppressed truth about Britain's most notorious serial killer. TIM TATE is a multi-award winning documentary film-maker, investigative journalist and bestselling author. His films have been honoured by Amnesty International, the Royal Television Society, UNESCO, the International Documentary Association, the Association for International Broadcasting, the (US) National Academy of Cable Broadcasting and the New York Festivals. Tim has written eleven non-fiction books, and is the co-author of the bestselling Slave Girl (John Blake Publishing, 2009), which has spent more than three years in Amazon's Top 100.