Pictured at the opening ceremony of a sharing session on the "Guangdong, Hong Kong and Macao Tripartite Anti-drug Activity" today (July 13) are (from left) Commissioner for Narcotics, Ms Sally Wong, Chief Executive Officer, Office of Guangdong Provincial Narcotics Control Commission, Mr Chen Shaobo, Secretary for Security, Mr Ambrose S K Lee, President of Macao Social Welfare Institute, Mr Ip Peng Kin, and Chairman of the Action Committee Against Narcotics Dr Choi Yuen-wan.