The existence of security guards is helpful to improve the level of social security and alleviate the shortage of police force. The vigilante can help the police patrol, maintain public order and ensure social stability and peace. In addition, vigilantes can also assist the police to perform various tasks, such as investigating cases and collecting evidence. Policemen do not receive wages, but enjoy some welfare benefits of public security services, aiming at encouraging more citizens to join the vigilante organization and make joint contributions to social security.

A volunteer police officer refers to a citizen who voluntarily participates in maintaining social order, protecting public order and performing official duties. It is usually organized by residents' organizations, community neighborhood committees and volunteer organizations. They voluntarily apply to join the volunteer police force and have certain police knowledge and skills after being audited and trained by relevant departments. A vigilante is not a formal policeman, but an act of voluntary service. Security officers usually receive some basic legal knowledge and safety skills training, and are responsible for patrolling, maintaining public order and assisting the police.