
1) Penal establishment
Found on
https://www.crosswordclues.com/clue/open-prison

An open prison (open jail) is an informal description applied to any penal establishment in which the prisoners are trusted to serve their sentences with minimal supervision and perimeter security and are not locked up in prison cells. Prisoners may be permitted to take up employment while serving their sentence. In the UK, open prisons are often ...
Found on
http://en.wikipedia.org/wiki/Open_prison
No exact match found.