What is public security business? How to run public security business?

Public security business is the legal knowledge to be used in the job, such as the overview of public security work, the use of batons, the construction of public security team, public security management, urban community policing and so on. This requires systematic learning. Most of them need to be recited. If you want to prepare for the exam, you'd better find relevant books to review. Major bookstores generally have books on public security business knowledge in various provinces. You can refer to them.