torturure. do the police officers use electric batons to shock prisoners? translator: yes. everyone uses different methods. reporter: for years, stories of arbitrary arrests, unspeakable cruelty and mass internment camps have been trickling out of china s xinjiang region. testimony from people like abdueli. when you were detained, what was your main job? kuindergarten teacher. reporter: police took him from his uighur language kindergarten. black hood on my face. the interrogation room. and inside there s a you are shackled there and like your feet are shackled. reporter: he says police accused him of espionage, plotting against the chinese government and the crime of separatism. and they demanded a confession. you just confess. you just admit what you have done. it s good for you.
now to a cnn exclusive. the result of nearly three years of investigations into gross human rights violations. for the first time, cnn has interviewed a former member of chinese security forces who tells cnn he was routinely ordered to arrest and torture uighur detainees in truly horrific and barbaric ways. china denies accusations from the united states that it s detained up to 2 million uighurs, many of them muslim in a system of modern-day internment camps in the xinjiang region. ivan watson brings us these disturbing revelations and we want to warn our viewers it contains graphic descriptions of violence and sexual assault. push the electric stick here and it s just like burning. reporter: this is the story of a victim and a self-confessed