He was released from prison in January 1946 and thereafter appeared as a witness in war crime trials against the Arrow Cross Party and other pro-Nazi former officials before the so-called People's Tribunal of Budapest.
Dia dibebaskan dari penjara pada bulan Januari 1946 dan kemudian muncul sebagai saksi mata dalam pengadilan kejahatan perang terhadap Partai Panah Salib dan mantan pejabat resmi pro-Nazi yang dijuluki Pengadilan Rakyat di Budapest.