Chełmno extermination camp
The Chełmno trials were a series of consecutive war-crime trials of the Chełmno extermination camp personnel, held in Poland and in Germany following World War II. The cases were decided almost twenty years apart. The first judicial trial of the former "SS" men – members of the "SS-Sonderkommando Kulmhof" – took place in 1945 at the District Court in Łódź, Poland. The subsequent four trials, held in Bonn, Germany, began in 1962 and concluded three years later, in 1965 in Cologne.