Trial of Friedrich Karl Vialon, Koblenz, West Germany, 1971. During the Second World War, Vialon (1905-1990) was Director of Finance for the Reichskommissariat Ostland, Nazi-occupied territories corresponding to the Baltic States and much of Belarus. After the war he went on to become Secretary of State at the West German Federal Ministry for Economic Cooperation in Bonn. In 1962 he testified as a witness at the war cimes trial of former SS officer Georg Heuser, repeatedly stating that during the war he had simply been a civil servant and a financial expert and had no knowledge of the crimes perpetrated against the Jewish population of Ostland. In 1971 he was put on trial for perjury but was acquitted.