On 17 June 1936, Hitler appointed Himmler as Chief of all German police and decreed the unification of all police forces.In this role, Himmler was still nominally subordinate to Frick, but the de facto power was now in the hands of Himmler, who as Reichsführer-SS, answered only to Hitler. This move gave Himmler operational control over Germany's entire detective force. The Gestapo became a national state agency rather than a Prussian state agency. Himmler also gained authority over all of Germany's uniformed law enforcement agencies, which were amalgamated into the new Ordnungspolizei (Orpo: Order Police), which became a national agency under SS general Kurt Daluege. Shortly thereafter, Himmler created the Kriminalpolizei (Kripo: Criminal Police), merging it with the Gestapo into the Sicherheitspolizei (SiPo: Security Police), under Heydrich's command. The SiPo was considered a complementary organization to the SD .Heinrich Müller was at that time the Gestapo operations chief. He answered to Heydrich; Heydrich answered only to Himmler and Himmler answered only to Hitler.