In 1936, the Hauptamt Sicherheitspolizei was founded by Himmler, in order to create a centralized command office under Nazi control of the German criminal investigation and secret state police organizations.[4] Therefore, the central office of the Reichskriminalpolizeiamt and the central office of the Gestapo were integrated into the Hauptamt Sicherheitspolizei under Heydrich's overall command.[1][5]