While the tax, industry and commerce, Land Bureau and other departments in Nancheng are becoming more and more popular, the pressure of some departments has increased sharply, among which the public security bureau is the most under pressure. With the influx of a large number of floating population, there is also a sharp rise in public security cases. It makes the public security department, which is already short of manpower, a headache. However, there is a limit to the number of personnel in the public security department, and the increase of budget funds is limited. As a result, a large number of cases can not be solved due to the bottleneck of personnel, which leads to more and more complaints against the Public Security Bureau. Xuefu Road police station, located in the most remote northwest end of the city, is the most relaxed police station in the city. Compared with the busy police stations in the main urban area, Xuefu Road police station can be called the “leisure” honor. Because the police station is remote, a few kilometers away from the main city, there are no large factories and residential areas in the area. There are only a few colleges and Universities: the Municipal Economic and Trade College, the Municipal Kindergarten Teachers’ school, the municipal art school, the municipal health school, the Provincial Forestry College and so on. Although the teachers and students in these colleges and universities have a population of more than ten thousand, they are all students under the strict management of the school, so there are few cases of public security. The smaller students fight, theft and petty theft are mostly handled by the school in private, rarely trouble to the police station.