Location sign-in, bright card notification, information verification. According to the relevant information of law enforcement, we know that the eight steps of law enforcement are: locating sign-in, showing the certificate, information verification, on-site inspection, making records, printing signatures, electronic filing and task completion. The law enforcement system is to realize the whole process of law enforcement through the eight-step work method, which can not only fix the evidence of environmental violations, but also retain the proof of standardized law enforcement.