Norbert Hans Poehlke (15 September 1951 – 22 October 1985), The Hammer-Killer (Der Hammermörder), was a German police officer (1971–1985) and serial killer who after he committed suicide in 1985 was found to have committed several bank robberies and related murders. He was tagged as the "Hammer-Killer" for his modus operandi of killing drivers of cars and using a sledgehammer in later bank robberies in which he would use his victims' cars as getaway vehicles.