http://www.legislation.gov.uk/id/apni/1953/18/part/chapter/n4

http://www.legislation.gov.uk/apni/1953/18/paragraph/p8

Prison Act (Northern Ireland) 1953

An Act to repeal and re-enact with amendments certain enactments relating to the confinement and treatment of prisoners, the administration of prisons, and offences arising in connection therewith; and for purposes connected with the matters aforesaid.