Prison systems are institutions designed to confine individuals who have been convicted of crimes. They serve various purposes, including punishment, rehabilitation, and deterrence. Prisons can vary in security levels, ranging from minimum to maximum security, depending on the nature of the offenses committed by the inmates. In many countries, prison systems are part of the broader criminal justice system, which includes law enforcement and the courts. The conditions and management of prisons can differ significantly, influenced by factors such as government policies, societal attitudes towards crime, and available resources for rehabilitation programs.