As part of the agreement in which Adolf Hitler became Chancellor of Germany, Hermann Göring - future commander of the Luftwaffe and the number two man in the Nazi Party - was named Interior Minister of Prussia.
By the spring of 1934 Himmler's SS controlled the SD and the Gestapo, but for him, there was still a problem, as technically the SS (and the Gestapo by proxy) was subordinated to the SA which was under the command of Ernst Roehm.