The Frankfurt Auschwitz trials, known in German as der Auschwitz-Prozess, or der zweite Auschwitz-Prozess, was a series of trials running from 20 December 1963 to 19 August 1965, charging 22 defendants under German criminal law for their roles in the Holocaust as mid- to lower-level officials in the Auschwitz-Birkenau death and concentration camp complex. Wikipedia