Slipper is mainly notable for his role in investigating the Great Train Robbery in August 1963 . Then a Detective Sergeant with the Flying Squad , Slipper was one of six police officers chosen by its head , Tommy Butler , to form a special unit to catch the robbers . According to the police investigation , several of the robbers had left fingerprints or palm prints at the gang 's temporary hideout at Leatherslade Farm in Buckinghamshire . Biggs ' fingerprints were found on a bottle of tomato sauce . Slipper was present when Biggs was arrested at his home in Redhill on 4 September 1963
Great Train Robbery
Great Train Robbery (1963)
Jack Slipper