Legal analysis: The police chief is a senior police officer, and his shirt is white, so he wears a white uniform. Police uniforms are divided into three colors: white, blue and black. We often see policemen wearing blue or black uniforms. In fact, the police positions wearing these two uniforms are not very high. Secondly, blue uniforms are usually shirts, and black ones are mostly coats. When performing tasks, most people will wear black uniforms, usually blue uniforms. Uniforms and uniforms have a lot to do with the level of police. Not all policemen can dress casually. Only when the official position is above the official rank can you be qualified to wear a white uniform. General prefecture-level city public security bureau chief is only at the level, so the city public security bureau chief is a white shirt.

Legal basis: Regulations on Dress Management of People's Police in Public Security Organs

Article 2 The dress of the people's police of public security organs (hereinafter referred to as the public security police) means that the professional people's police of public security organs wear the uniform of public security organs throughout the country in accordance with regulations.

Article 9 When dressing, public security policemen should be dignified in appearance, civilized in manners, full of energy and correct in posture.

Article 10 When dressing, police officers are not allowed to smoke or drink alcohol in public places and other places where smoking is prohibited. You are not allowed to enter commercial entertainment places unless you need to work.