When law enforcement officers wear standard clothing, they must wear complete hat badges, epaulettes, badges, number plates, bow ties and other signs and signs that match the uniforms. Signs and signs shall not be mixed. Wear the inner belt for standard leather shoes or black leather shoes.

Although business personnel can carry out law enforcement after obtaining the law enforcement certificate, this law enforcement certificate has great limitations. Generally speaking, civil servants' law enforcement certificates have no geographical restrictions. This kind of law enforcement certificate, basically from the public security law, can prove that its law enforcement can be carried out nationwide, but there are many restrictions on the law enforcement certificate obtained by the personnel of public institutions through the examination. The most prominent restriction is geographical restriction. Generally speaking, the law enforcement scope of provincial institutions is the province's jurisdiction, while the law enforcement certificates of local cities can only be enforced. Once they leave the prescribed law enforcement area, the law enforcement certificates of these institutions will lose their legal effect. Therefore, although the law enforcement certificate of public institutions has solved some law enforcement contradictions, there are still shortcomings.