Criminal law can be defined as a body of rules and statutes that defines conduct prohibited by the government because it threatens and harms public safety and that establishes punishment to be imposed upon the commission of such acts. A crime is any act or omission in violation of a law prohibiting the act or omission. A person commits a crime when they fulfil every element of an offense. In general, every crime involves three elements, actus reus, mens rea, and the causation between the act and the effect.