An authentic, intramural and operational presentation of the Yard which records the patience, perserverance of its men, the coordination of the divisions. From the files, a sequence of cases and their completion provide a working knowledge of the C.I.D. as they track down murderers, blackmailers, drug dealers, anarchists, spies, etc. and the special branches (Flying Squad, Railway Police, Port of London Authority, etc.) as well as the department divisions (Medical, Laboratory, Criminal Record Office, and others), all are fully detailed. A credit- but never glamour- giving account of an almost legendary institution, this has a special audience.