This question is like "which came first, the chicken or the egg?" Same. Without those unjust things, no one will know the name of justice. Yes, the so-called crime is also relative, and there is a measure, that is, rules and laws. From this perspective, there should be laws first. But in reality, only when something harmful to society is done can people think of stopping and preventing it from happening again, which leads to rules and laws, and laws are made by people. In the world, there is no miracle, and the rules of death can never keep up with changes. Laws and rules are always checking for leaks and filling gaps, saving the shortcomings of previous laws and regulations, and then achieving the purpose of more comprehensive regulation of crimes. From this perspective, crime comes first. As Marx said, everything is contradictory. Yes, contradictory questions, contradictory answers!