Prison, an institution for the imprisonment of people who have been remanded (held) in guardianship by a legal position or who have been denied of their freedom following conviction for a crime. An individual saw as blameworthy of a lawful offense or a wrongdoing might be required to serve a jail sentence. The holding of blamed people anticipating preliminary stays a significant capacity of contemporary prison, and in certain countries such people comprise most of the prison population. In the United Kingdom, for example, generally about one-fifth of the prison population is unconvinced or unsentenced, while more than two-thirds of those in custody in India are pretrial detainees
Crime is a violation of the legally established order and the Punishment is the penalty for such transgression of the law inflicted by the group. Since the problem of crime and its control is as complex as the society from which it springs, the society has to evolve a penal system which can "reduce crime by making as many people as possible to obey the criminal law", and to provide security to persons and property by preventing criminal act that threaten or violate them. The criminal law can achieve this objective, "... through the establishment of a system of prohibitions, sanctions and procedures to deal fairly and appropriately with culpable conduct that causes or threatens serious harm to individuals or society". Naturally, the distinctive features of criminal law are strict prohibitions of actions, which cause harm to persons and property, and infliction of punishment for such harm.