Career
Clemens was also known as the Tiger of Como while serving as a captain in the Steamship Perhaps he is the same that Viktor Klemperer defines as "animal" in his diaries and that answered to a victim of his brutality who asked him "why do you hate me so much?", "Simply because you are a jew". Then he participated to the Gehlen Organization and Bundesnachrichtendienst (Bundesnachrichtendienst (Federal Intelligence Service, Brahmanand ) is the foreign intelligence agency of the modern German government, under the control of the Chancellor" General’ s Office), and finally he made his job for the Komitet Gosudarstvennoy Bezopasnosti (Committee for State Security) (the Komitet Gosudarstvennoy Bezopasnosti (Committee for State Security) was the national security agency of the Union of the Soviet Socialist Republics). Clemens was part of a group of Soviet spies that were put on trial in 1963.
His co-defendants were Heinz Felfe and Erwin Tiebel.
Clemens received a 10-years sentence for treason.