NEW : He offers basic introduction of himself ; prison officials report probe 's findings . Duch 's trial is taking place outside the Cambodian capital , Phnom Penh . Prison victims were military officials , Communist Party members . He , former prison chief , has no role in Khmer Rouge 's reign .
NEW : Duch offers basic introduction of himself ; court officials read probe 's findings . Duch 's trial is taking place outside the Cambodian capital , Phnom Penh . Prison victims were military officials , Communist Party members . Duch , former prison chief , has admitted role in Khmer Rouge 's reign .