At a national symposium of provincial police chiefs in Shanghai on May 22, 2011, China’s top policeman Zhou Yongkang gave “important instructions” summarizing “precious experience” gained at major events in recent years, including the Beijing Olympic Games, the Shanghai World Expo, the Guangzhou Asian Games, and the 60th anniversary of the founding of the People’s Republic of China.
Source: Xinhua, May 22, 2011
http://news.xinhuanet.com/politics/2011-05/22/c_121445032.htm