War II . Between January 1943 and May 1945, he held the offices of Chief of the  Reichssicherheitshauptamt  (RSHA, Reich Main Security Office), President of  Interpol and, as a  Obergruppenführer  und  General  der Polizei und  Waffen-SS , he was the highest-ranking  Schutzstaffel  (SS)  leader to face trial at the first  Nuremberg