TUOL Sleng prison survivor Chum Mey departed for Japan this week to address university students in four cities over the course of a two-week visit. The former mechanic, 79, said he had been invited by professors at schools in Tokyo, Hiroshima, Nagoya and Nagano, and that his talks would centre on the period of his detention. “I was invited by the professors there to tell the Japanese students about my life in prison,” he said. Last year, Chum Mey testified at the Khmer Rouge tribunal during the trial of Tuol Sleng chairman Kaing Guek Eav, alias Duch, who in July was found guilty and sentenced to 30 years in prison.