The force was created by Hermann Göring in 1933 by combining the various security police agencies of Prussia into one organisation. Beginning on 20 April 1934, it passed to the administration of Schutzstaffel (SS) national leader Heinrich Himmler, who in 1936 was appointed Chief of German Police (Chef der Deutschen Polizei) by Hitler. The Gestapo at this time became a national rather than a Prussian state agency as a sub-office of the Sicherheitspolizei (SiPo; Security Police).