Criminal Legislation is the name given to the branch of legislation that governs a person's relationship to the state. It consists of the definitions of prison offenses, that are normally established by Congress or state legislatures. The term "prison law" also encompasses the rights of an accused and the legal process, including arrest, arraignment, grand juries, pleas, discovery, pretrial hearings, trials, jury selection, evidence, motions, and posttrial remedies. The main purpose of the criminal law is to set forth the punishment for prison offenses.