Chief of Civil Administration

Chief of Civil Administration () was an office introduced in Nazi Germany, operational during World War II. Its task was to administer civil issues according to occupation law, with the primary purpose being the support of the military command in the operational areas of the German Army. CdZ would pass his authority to a corresponding civil government after the territory in question became in the rear of the operating armed forces. 
Responsibility.
According to German law, all executive powers in the deployment areas passed to the Wehrmacht armed forces. Overstrained and incapable to construct a civil administration, the German Army High Command willingly put these tasks to the CdZ. In the capacity as "Reichsstatthalter" governor, the office was under the authority of the Reich Ministry of the Interior, but operationally CdZ was under the commander-in-chief of the German Army and ultimately of Adolf Hitler as supreme commander. Hitler generally interfered in the domestic policies of the occupied territories, giving unrestricted powers to "Sicherheitsdienst" and "SS" squadrons under the command of Heinrich Himmler.
Administrations.
Several administrative divisions under the authority of a Chief of Civil Administration were officially designated as CdZ-Gebiete (CdZ Areas, Chief of Civil Administration Territories):
After the Battle of France, from August 1940, CdZ officials were appointed in those western occupied territories that were not (yet) officially annexed by the Third Reich: 
Further CdZ assumed office upon the 1941 Balkan Campaign:
After the beginning of Operation Barbarossa in June 1941, a "CdZ-Gebiet Bialystok" under Erich Koch, "Gauleiter" of East Prussia, was established on Polish territory previously occupied by the Soviet Union, converted into Bezirk Bialystok on 1 August 1941.