Comparative criminal justice is the study of how different countries around the world approach punishing people who break the law. It looks at the similarities and differences in what kinds of laws exist, how laws are enforced, and the rights that are given to those accused of breaking the law. For example, some countries require that those accused of a crime be called to court to face their accuser, while others don't. Some countries have more severe punishments for certain crimes than other countries, like giving a longer prison sentence for stealing. Studying comparative criminal justice helps us understand how different countries handle punishments for crimes, and if one kind of punishment is more efficient in reducing crime than another.