International Campaign for Tibet. “Political Prisoners”. Retrieved April 20th, 2008 – “The use of detention, arrest and imprisonment of large numbers of Tibetans continues to be an integral part of China’s effort to suppress opposition to Chinese rule in Tibet. Tibetan political prisoners endure harsh prison conditions, including torture, deprivation of food and sleep, and long periods in isolation cells.
Reasons for arrest can include printing political leaflets, shouting reactionary slogans, encouraging reactionary singing, hoisting or possessing the Tibetan flag, participating in demonstrations and/or showing allegiance to the Dalai Lama.” [see link for more information]