A more thorough explanation:

Definition: Criminal science is the study of crime. It aims to discover the reasons why people commit crimes, find the best ways to reduce crime, and improve the methods used to deal with criminals. There are three main branches of criminal science: criminology, criminal policy, and criminal law.

Examples: One example of criminal science is criminology, which is the study of the nature and causes of crime. Another example is criminal law, which is the set of rules and regulations that define criminal offenses and the punishments for committing them. Criminal policy is another branch of criminal science that involves creating and implementing policies to prevent and reduce crime.

Explanation: Criminal science is a broad field that encompasses many different areas of study. Criminology, criminal law, and criminal policy are just a few examples of the different branches of criminal science. By studying crime and its causes, criminal scientists hope to find ways to prevent and reduce criminal behavior, as well as improve the way that society deals with criminals.