An open prison or open jail is a jail in which prisoners are trusted to complete sentences with minimal supervision and perimeter security, and are often not locked up in their prison cells. Prisoners may be permitted to take up employment while serving their sentence, thus encouraging them to reintegrate into society while withdrawing from criminal behavior. Without the constraints and stresses of typical incarcerations, they can discover more constructive lifestyles through support and light supervision from the criminal justice system. Such arrangements give prisoners time to improve their mental health and increase their chances of future employment. Despite these benefits, some scholars have pointed out that new forms of “pains of imprisonment” can emerge within open prisons, arising from the stresses of “liberty under constraint.”