The mandate for an NPM comes from the OPCAT, a human rights treaty drafted by States who wanted to ensure stronger protection for people deprived of their liberty.
Central to the OPCAT is the idea that a system of regular, independent visits to places of deprivation of liberty can serve as an important safeguard against abuses, and prevent torture and other cruel, inhuman or degrading treatment or punishment in places that by their very nature fall outside the public scrutiny.
An NPM aims to prevent torture and other cruel, inhuman or degrading treatment or punishment from taking place through regular monitoring of places of deprivation of liberty with or without prior notice. The OPCAT is not prescriptive on the structure for the NPM, however, there are minimum requirements for NPMs, which include the following:
The following institutions have been proposed as members of the NPM, subject to legislative review and amendments to their enabling legislation regulating independence, powers and functions:
The Health Ombud (HO) provides guidelines and expert opinion to the South African National Preventive Mechanism (NPM) on mental health care issues due to the compensation of the HO, which includes both healthcare and legal practitioners.
The NPM must regularly examine the treatment of persons deprived of their liberty in places of deprivation of liberty as defined in Article 4 of the OPCAT and the strengthen, if necessary, their protection against torture and cruel, inhuman, or degrading treatment of punishment
The NPM can identify trends, improvement, or deterioration of the conditions of detention and provides recommendations to reinforce/implement preventative measures as underscored by international and domestic human rights law.