Police forces of Nazi Germany

central Intelligence and Police Service (usually in plain clothes) of the SS under the National Socialist regime in Germany from 1939 (to 1945)

Jewish auxiliary police units organized within the Nazi ghettos by local Judenrat

The ' often abbreviated as SiPo', is a German term meaning "security police". In the Nazi era, it referred to the state political and criminal investigation security agencies. It was made up by the combined forces of the Gestapo (secret state police) and the Kriminalpolizei (criminal police; Kripo) between 1936 and 1939. As a formal agency, the SiPo was incorporated into the Reich Security Main Office (RSHA) in 1939, but the term continued to be used informally until the end of World War II in Europe.

The term Feldgendarmerie (; ) refers to military police units of the armies of the Kingdom of Saxony (from 1810), the German Empire and Nazi Germany up to the end of World War II in Europe.

The Feldjägerkorps () ( field hunter corps) was a military provost organization in the German Wehrmacht during World War II. It was established on 27 November 1943 and consisted of three Feldjäger commands that reported directly to the Oberkommando der Wehrmacht, headed by chief of staff Generalfeldmarschall Wilhelm Keitel. It was recruited from veteran, battle-hardened troops and was senior to all other military police organizations. It operated approximately 12 miles behind the front lines, and its main function was to maintain order and discipline among the troops, hunting down deserters an

Reichskriminalpolizeiamt (RKPA), was Nazi Germany's central criminal investigation department, founded in 1936 after the Prussian central criminal investigation department (Landeskriminalpolizeiamt) became the national criminal investigation department for Germany. It was merged, along with the secret state police department, the Gestapo, as two sub-branch departments of the Sicherheitspolizei (SiPo). The SiPo was under Reinhard Heydrich's overall command. In September 1939, with the founding of the Reich Security Main Office (RSHA), the SiPo as a functioning state agency ceased to exist as a