The Ministry of Public Security of the People’s Republic of China published a report on January 13, 2011, originally from its own newspaper www.cpd.com.cn, regarding new policies, rules, and technological improvements recently taken by either a provincial Public Security Department or a Municipal Public Security Bureau in China.
For example, the Lanzhou Municipal Security Bureau in Gansu Province has recently upgraded its Command Center. A large display screen is connected to 4200 city roads, "social order" monitoring points, and traffic control points. The Command Center can send out police officers quickly, according to the situation, to wherever the police are currently located.
Source: The Ministry of Public Security of the People’s Republic of China, January 13, 2011