Gregor Formanek is charged with aiding and abetting 3,322 murders at the Sachsenhausen concentration camp
German authorities are pressing for a 100-year-old former Nazi concentration camp guard to face trial almost 80 years after the end of the second world war.
The higher regional court in Frankfurt said on Tuesday it had overturned a decision by a lower court under which the suspect had been deemed unfit to stand trial.
