By Teddy Ng in Hong Kong and Qian Yanfeng in Shanghai (China Daily)
Updated: 2009-06-24 07:35
Tam Pok-man (R) and Lu Chun-yin, both 18, pose inside a dormitory at the Christian Zheng Sheng College, a drug rehabilitation centre, at a remote area on Hong Kong's Lantau island June 22, 2009. [Agencies]