First of all, the procedural law tells you what you should pay attention to, what you can do, what you can't do, and what kind of procedures are there in this field. For example, there is a provision in the Administrative Punishment Law that law enforcement officers must be present at the time of administrative law enforcement and produce law enforcement certificates issued by people's governments at or above the provincial level. Other substantive laws basically follow this principle, which is the procedural law.

Substantive law is to stipulate how to do it, such as product quality law, trademark law and criminal law. Specific to what is the responsibility, what is the obligation, and what to do if it is violated.

According to jurisprudence, the latter law should be superior to the former law, the special law is superior to the general law, and the upper law is superior to the lower law. As for the superiority of substantive law over procedural law, it seems that the order is reversed.