Scotland Yard - Has a crime been committed Scotland Yard must often answer this question, especially when an unidentified body has been found. This array of laboratory flasks and tubes is being used to search for evidence of cyanide poisoning, Other tests will follow, for there is evidence that the corpse being investigated has met with foul play. Women now play an import ant role as technicians in the Scotland Yard laboratories. May 14, 1955. (Photo by Eugene Kammerman, Camera Press). ;Scotlan