Private prison
A private prison, or for-profit prison, is a place in which individuals are physically confined or incarcerated by a third party that is contracted by a government agency. Private prison companies typically enter into contractual agreements with governments that commit prisoners and then pay a per diem or monthly rate, either for each prisoner in the facility, or for each place available, whether occupied or not. Such contracts may be for the operation only of a facility, or for design, construction and operation.
Private prisons are controversial.