Crime refers to any act that violates a law established by a government or authority, punishable by legal action. It encompasses a wide range of behaviors considered harmful to individuals or society as a whole, including theft, assault, murder, fraud, and drug trafficking. Crimes can be classified as either felonies or misdemeanors based on their severity, with felonies typically resulting in heavier penalties, including imprisonment for longer terms. The legal definition of crime varies by jurisdiction, as different societies have different norms, values, and legal regulations that determine what is considered criminal behavior. The enforcement of laws against crime is typically carried out by law enforcement agencies, and those accused of crimes have the right to a fair trial within the justice system. The study of crime, including its causes, consequences, and how it can be prevented, falls under the field of criminology.