Bit of background

'At the end of 2005, the UN Special Rapporteur on Torture, Dr Manfred Nowak, visited China, Tibet and Xinjiang. Dr Nowak stated that "he was struck by the strictness of prison discipline and a palpable level of fear and self-censorship when talking to detainees". He also confirmed that a variety of torture methods are still widely and systematically used; including beatings, use of electric shock batons, submersion in pits of sewage, exposure to conditions of extreme heat or cold, deprivation of sleep, food or water, prolonged solitary confinement, denial of medical treatment and hard labour.'

from http://www.freetibet.org/campaigns/stoptorture/index.htm