If a police officer uses excessive violence in the performance of his duties, community residents are likely to have a negative prejudice against his violent law enforcement and abuse of power. This kind of excessive violence seriously violates the professional ethics and law enforcement norms of the police, and will cause community residents to question and resent the impartiality, legality, and image of the police community. It not only harmed the parties and their families in the specific incident, but also caused widespread shock and anxiety in the entire community. Based on this incident, residents will have a strong negative evaluation of the behavior of the police officer, which in turn may prejudice the professional group of the police as a whole, affect the relationship between the police and the people, and destroy the trust of community residents in the law enforcement department. In the future, it may trigger a series of discussions and discussions on how to reshape trust and regulate law enforcement behavior.reflection.