William Waddell, the former curator of Scotland Yard's Black Museum, was in charge of a collection of items ranging from knives and guns to Dennis Nilsen's cooker and the poison pellet which killed Georgi Markov. This book presents an array of famous cases, together with a history of the Museum, and the Yard itself, and various methods of identification, such as fingerprinting. Whether writing about Jack the Ripper, and demolishing the numerous theories about the Ripper's identity, or documenting the horrors of Dennis Nilsen's crimes, this book is illustrated with pictures from the police archive and the Museum's memorabilia.