By Teddy Ng in Hong Kong and Qian Yanfeng in Shanghai (China Daily)
Updated: 2009-06-24 07:35
Newly arrived 17-year-old Law Ho-tin (L) sleeps during a lesson at the Christian Zheng Sheng College, a drug rehabilitation centre, at a remote area on Hong Kong's Lantau island June 18, 2009. [Agencies]
