Students pose for an anti-drug campaign under a banner reading, "Say no to drugs" at Bozhou vocational and technical college, Anhui province, on June 25, 2013. The 26th International Day Against Drug Abuse and Illicit Trafficking will be observed on June 26. [Photo by Zhang Yanlin/Asianewsphoto]

Police instruct workers at entertainment spots on how to recognize ecstasy and other drugs in Changle, Fujian province, on June 25, 2013. Police also introduced a hotline for reports and made a commitment with night clubs and hotels, which are likely spots for drug abuse to occur. [Photo/Xinhua]