CHRIS CLARK was a policeman for twenty-eight years. He joined Norfolk Constabulary as a constable in 1966, proudly wearing its uniform until 1994. 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 long suppressed truth about Britain's most notorious serial killer. TIM TATE is a multi-award winning documentary film-maker, investigative journalist and bestselling author.