Optional Protocol to the Convention against Torture

E43475

United Nations treaty international human rights treaty optional protocol

The Optional Protocol to the Convention against Torture is an international human rights treaty that establishes a system of regular, independent visits to places of detention to prevent torture and other cruel, inhuman or degrading treatment or punishment.

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All labels observed (4)

Label	Occurrences
Optional Protocol to the Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment	10
Optional Protocol to the Convention against Torture canonical	7
OPCAT	3
United Nations Optional Protocol to the Convention against Torture	1

How this entity was disambiguated

This entity first appeared as the object of triple T337144 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Optional Protocol to the Convention against Torture
Context triple: [United Nations treaty bodies, monitorsTreaty, Optional Protocol to the Convention against Torture]

A. Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment
The Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment is a core United Nations human rights treaty that obliges states to prevent, criminalize, and punish torture and ill-treatment under all circumstances.
B. Committee against Torture
The Committee against Torture is a United Nations body of independent experts that monitors states’ implementation of the Convention against Torture and works to prevent torture and other cruel, inhuman or degrading treatment worldwide.
C. Additional Protocols to the Geneva Conventions
The Additional Protocols to the Geneva Conventions are international treaties that expand and strengthen humanitarian protections for victims of armed conflicts, including civilians and combatants no longer taking part in hostilities.
D. Additional Protocol I
Additional Protocol I is a 1977 treaty that supplements the Geneva Conventions by strengthening protections for victims of international armed conflicts and regulating the conduct of hostilities.
E. Agreement on the Privileges and Immunities of the International Criminal Court
The Agreement on the Privileges and Immunities of the International Criminal Court is a multilateral treaty that grants the ICC, its officials, staff, and certain participants the legal protections and immunities necessary for the Court to operate independently and effectively in member states.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Optional Protocol to the Convention against Torture
Target entity description: The Optional Protocol to the Convention against Torture is an international human rights treaty that establishes a system of regular, independent visits to places of detention to prevent torture and other cruel, inhuman or degrading treatment or punishment.

A. Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment
The Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment is a core United Nations human rights treaty that obliges states to prevent, criminalize, and punish torture and ill-treatment under all circumstances.
B. Committee against Torture
The Committee against Torture is a United Nations body of independent experts that monitors states’ implementation of the Convention against Torture and works to prevent torture and other cruel, inhuman or degrading treatment worldwide.
C. Additional Protocols to the Geneva Conventions
The Additional Protocols to the Geneva Conventions are international treaties that expand and strengthen humanitarian protections for victims of armed conflicts, including civilians and combatants no longer taking part in hostilities.
D. Additional Protocol I
Additional Protocol I is a 1977 treaty that supplements the Geneva Conventions by strengthening protections for victims of international armed conflicts and regulating the conduct of hostilities.
E. Agreement on the Privileges and Immunities of the International Criminal Court
The Agreement on the Privileges and Immunities of the International Criminal Court is a multilateral treaty that grants the ICC, its officials, staff, and certain participants the legal protections and immunities necessary for the Court to operate independently and effectively in member states.
F. None of above. chosen

Statements (47)

Predicate	Object
instanceOf	United Nations treaty ⓘ international human rights treaty ⓘ optional protocol ⓘ
administeredBy	Office of the United Nations High Commissioner for Human Rights ⓘ
adoptedBy	United Nations General Assembly ⓘ
adoptionDate	2002-12-18 ⓘ
adoptionResolution	UN General Assembly resolution A/RES/57/199 ⓘ
aimsAt	strengthening protection of persons deprived of liberty ⓘ
appliesTo	States parties to the Convention against Torture that ratify the Optional Protocol ⓘ
articleCount	37 ⓘ
basedOn	preventive approach through visits rather than only reactive complaints mechanisms ⓘ
category	United Nations optional protocol ⓘ linked to: Optional Protocols to core human rights treaties treaty on torture prevention ⓘ
cooperatesWith	Committee against Torture ⓘ
depositary	Secretary-General of the United Nations ⓘ
enteredIntoForceDate	2006-06-22 ⓘ
establishes	Subcommittee on Prevention of Torture ⓘ national preventive mechanisms ⓘ system of regular visits to places of detention ⓘ
fullName	Optional Protocol to the Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment ⓘ linked to: Optional Protocol to the Convention against Torture
language	Arabic ⓘ Chinese ⓘ English ⓘ French ⓘ Russian ⓘ Spanish ⓘ
legalNature	binding treaty for States parties ⓘ
mechanismType	preventive visits ⓘ
monitoringBody	Subcommittee on Prevention of Torture ⓘ national preventive mechanisms ⓘ
openedForSignatureDate	2003-02-04 ⓘ
parentTreaty	Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment ⓘ
partOf	United Nations human rights treaty system ⓘ linked to: United Nations human rights system
placeOfAdoption	New York City ⓘ
prohibits	sanctions or reprisals against persons communicating with visiting bodies ⓘ
purpose	to prevent other cruel, inhuman or degrading treatment or punishment ⓘ to prevent torture ⓘ
region	global ⓘ
relatesTo	Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment ⓘ
requires	States parties to establish or designate national preventive mechanisms ⓘ confidentiality of information obtained during visits ⓘ cooperation of States parties with the Subcommittee on Prevention of Torture ⓘ unrestricted access for visiting bodies to places of detention subject to certain conditions ⓘ
scope	places where persons are deprived of their liberty ⓘ
shortName	OPCAT ⓘ linked to: Optional Protocol to the Convention against Torture
subjectMatter	prevention of cruel, inhuman or degrading treatment or punishment ⓘ prevention of torture ⓘ

How these facts were elicited

Referenced by (21)

Full triples — surface form annotated when it differs from this entity's canonical label.

United Nations treaty bodies → monitorsTreaty → Optional Protocol to the Convention against Torture ⓘ

Subcommittee on Prevention of Torture → legalBasis → Optional Protocol to the Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment ⓘ