the influx of rescuers into the city. Christchurch Women's Prison Christchurch Women's Prison is one of three women's prisons in New Zealand and the only one in the South Island. It is near Paparua, to the west of Christchurch. It holds 138 prisoners and employs 70 staff. The prison opened in 1974, and prisoners and staff transferred there from Dunedin Prison and Christchurch Prison's Women's Division. A facilities upgrade in 2011 provided for four mothers and their babies to live together. The prison provides the Kowhiritanga ('Making Choices') rehabilitation programme designed to address the particular needs of female offenders – many of whom have suffered sexual abuse. Rolleston Prison Rolleston prison is located at Runners Rd in Rolleston, south-west of Christchurch. It was originally established in 1958 as an army detention centre. It was first used as a prison in 1986 when the new Corrective Training Centre was built called the Tawa unit. The prison was extensively renovated in 1987 to increase capacity and in 1989 the 60 bed Kia Marama unit opened - one of only two such units in the country. The unit delivers group-based treatment within a therapeutic environment to child sex offenders. The programme helps prisoners look at their patterns of behaviour and identify high-risk situations. Evaluations have shown that the programme is very effective in reducing re-offending. In 1992 the 60 bed Kowhai unit opened and an additional two units have been completed since then. Rolleston now holds about 320 male prisoners and employs 93 staff. Because Rolleston Prison contains prisoners assessed as being of minimal risk to the public, the level of physical security is lower than would be found at many other prisons. It originally did not have a perimeter fence. Instead, individual units had their own secure fencing and the prison has electronic security devices around the perimeter. In 2019 a perimeter fence was installed. Older units at Rolleston are set to close as part of the Department's decision to close down older prisons and build a new 960 bed prison for males at Wiri. Otago Corrections Facility Otago Corrections Facility (OCF) is located near Milton. It opened in 2007 and was one of four new prisons that opened between 2005 and 2007. OCF was intended to hold about 425 male prisoners and employ 201 staff. When double bunking was introduced at OCF in 2010, inmate numbers rose to 480. The prison