As presiding judge of the 3rd criminal division, he ruled under the Rassenschande paragraphs of the Nuremberg Laws. He also was involved in retroactively legalizing the "euthanasia" murders of the Aktion T4 programme in 1939–1941.
The presiding judge of the 3rd criminal division used the Nuremberg Laws as a basis for his rulings, which aimed to uphold racial purity. He also participated in legitimizing the "euthanasia" killings conducted under the T4 program.