Complex sentence: Himmler was later named the chief of all German police in June, 1936, and the Gestapo was incorporated with the Kripo (Criminal Police) into sub-branches of the SiPo.
Split into simpler sentences: Himmler was later named the chief of all German police in June, 1936. Therein, the Gestapo was incorporated with the Kripo (Criminal Police) into sub-branches of the SiPo.