1) Attica and Newgate 2) Attica and San Quentin 3) Cooler places 4) Detention centers 5) Folsom et al 6) Gaols 7) Joints 8) Places for cells 9) Places found up the river 10) Sites of many bars 11) Slammers 12) Where people do stretches Found on https://www.crosswordclues.com/clue/prisons
[Property] The Prisons (Property) Act 2013 (c. 11) is an Act of the Parliament of the United Kingdom which will make provision for the destruction of certain property found in prisons and similar institutions. ... Found on http://en.wikipedia.org/wiki/Prisons_(Property)_Act_2013