UN Human Rights Knowledge Gateway

About the NPM Hub

What is a National Preventive Mechanism (NPM)?

A National Preventive Mechanism (NPM) is an independent national body designated or established by States parties to the Optional Protocol to the Convention against Torture (OPCAT) to prevent torture and other cruel, inhuman or degrading treatment or punishment through a system of regular preventive visits to all places where persons may be deprived of their liberty.

National preventive mechanisms are mandated to examine the treatment and conditions of persons deprived of liberty, make recommendations to the authorities aimed at strengthening safeguards against ill-treatment, and submit proposals and observations concerning legislation and policies relevant to the prevention of torture.

What is NPM Hub?

The NPM Hub provides concrete tools to States Parties of the Optional Protocol to the Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment (OPCAT) to establish and maintain their national preventive mechanisms.

It is also an important resource for the States parties to the UN Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment (UNCAT) as they seek to enhance the implementation of their obligation to prevent torture and ill-treatment.

It promotes peer learning and sharing good practice among States and national preventive mechanisms.

It provides valuable information to States considering ratification of or accession to OPCAT, as establishment of national preventive mechanism is the key obligation under OPCAT.

Why a Hub for NPMs?

The NPM Hub is a unique global platform designed to support, connect and strengthen National Preventive Mechanisms (NPMs) and all stakeholders involved in the prevention of torture and ill-treatment. It serves as a central repository of information, guidance and practice, helping users navigate the diverse landscape of NPMs while promoting effective implementation of the preventive mandate established under OPCAT.

The Hub:

  1. Provides a global overview of NPMs, including their establishment or designation processes, institutional models, mandates, working methods and contact information through dedicated country pages.
  2. Facilitates the exchange of good practices, tools and resources among NPMs, States and other relevant stakeholders.
  3. Makes accessible the practice and jurisprudence of the Subcommittee on Prevention of Torture (SPT), helping users better understand and implement the NPM mandate.
  4. Showcases innovative approaches and successful initiatives, enabling NPMs to learn from one another, avoid duplication of efforts and make efficient use of resources.
  5. Strengthens engagement and cooperation between NPMs, State authorities, civil society and United Nations human rights mechanisms.
  6. Provides information on upcoming events, training opportunities and developments relevant to NPMs and torture prevention.
  7. Promotes collaboration and knowledge-sharing by enabling NPMs to contribute information, share experiences, highlight initiatives and keep their profiles up to date.

By bringing together knowledge, practice and networks in one place, the NPM Hub aims to enhance the effectiveness, visibility and impact of NPMs worldwide.

Who will be using the Hub?

The NPM Hub is designed as a practical resource for a wide range of stakeholders involved in the prevention of torture and ill-treatment. Its primary users are members and staff of National Preventive Mechanisms seeking guidance, good practices, tools and knowledge to support the implementation of their preventive mandate. The Hub may also be used by State authorities responsible for establishing or supporting national preventive mechanisms, civil society organizations, national human rights institutions, detention-monitoring bodies, academics, and international partners working in the field of detention oversight and torture prevention. By bringing together relevant standards, resources and experiences, the Hub aims to strengthen the capacity of all actors contributing to effective and independent preventive monitoring and the protection of the rights and dignity of persons deprived of their liberty, based on the framework established by the Optional Protocol to the Convention against Torture and the guidance of the Subcommittee on Prevention of Torture.

Contact Us

We welcome your questions, feedback, suggestions, and contributions to the NPM Hub.

Whether you are a member of a National Preventive Mechanism, a government representative, a civil society actor, or a practitioner working in the field of torture prevention, we encourage you to get in touch with us.

Email: ohchr-npm@un.org

We look forward to hearing from you and to supporting efforts to strengthen the prevention of torture and ill-treatment worldwide!

Last updated: November 4, 2026
Share feedback