A more thorough explanation:

Definition: Comparative criminology is the study of the similarities and differences between the criminal justice systems of different countries.

For example, a comparative criminologist might study the differences between the criminal justice systems of the United States and Japan. They might look at things like the types of crimes that are most common in each country, the punishments for those crimes, and the ways that law enforcement agencies operate.

By studying these differences, comparative criminologists can gain a better understanding of how different societies approach crime and punishment. This knowledge can be used to improve criminal justice systems and reduce crime rates around the world.