St Heliers Correctional Centre, an Australian minimum security prison for males, is located in Muswellbrook, New South Wales. The centre is operated by Corrective Services NSW an agency of the Department of Attorney General and Justice of the Government of New South Wales. The centre detains sentenced felons under New South Wales and/or Commonwealth legislation. St Heliers was responsible for the first mobile prison in New South Wales, operating until its cessation in 2003.