The prison contains 4 of New Zealand's only specialist maximum-security units, housing some of the most severe criminals in the country.
[2] It includes the high security West division, built in 1981 to relieve crowding at other institutions, particularly at Mount Eden Prison; a minimum/low/low-medium security work and pre-release unit called Te Mahinga; and a 60-bed special treatment unit for child sex offenders, called Te Piriti.
David Connor, the prison chaplain, noted that when he moved to Paremoremo in 1984, a chain-link fence around the medium-security block was all that was required.
Anyone carrying items into East Division is required to bring them through in a clear plastic bag.
East Division has a centralised CCTV system, with cameras monitored from the control room in the centre of the wing at all times.