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Anyone who is deprived of his liberty by arrest or detention shall be entitled to take proceedings before a court, in order that that court may decide without delay on the lawfulness of his detention and order his release if the detention is not lawful.

1. Migrant workers and members of their families shall have the right to liberty and security of person.

2. Migrant workers and members of their families shall be entitled to effective protection by the State against violence, physical injury, threats and intimidation, whether by public officials or by private individuals, groups or institutions.

3. Any verification by law enforcement officials of the identity of migrant workers or members of their families shall be carried out in accordance with procedure established by law.

4. Migrant workers and members of their families shall not be subjected individually or collectively to arbitrary arrest or detention; they shall not be deprived of their liberty except on such grounds and in accordance with such procedures as are established by law.

5. Migrant workers and members of their families who are arrested shall be informed at the time of arrest as far as possible in a language they understand of the reasons for their arrest and they shall be promptly informed in a language they understand of any charges against them.

6. Migrant workers and members of their families who are arrested or detained on a criminal charge shall be brought promptly before a judge or other officer authorized by law to exercise judicial power and shall be entitled to trial within a reasonable time or to release. It shall not be the general rule that while awaiting trial they shall be detained in custody, but release may be subject to guarantees to appear for trial, at any other stage of the judicial proceedings and, should the occasion arise, for the execution of the judgement.

7. When a migrant worker or a member of his or her family is arrested or committed to prison or custody pending trial or is detained in any other manner:

(a) The consular or diplomatic authorities of his or her State of origin or of a State representing the interests of that State shall, if he or she so requests, be informed without delay of his or her arrest or detention and of the reasons therefor;

(b) The person concerned shall have the right to communicate with the said authorities. Any communication by the person concerned to the said authorities shall be forwarded without delay, and he or she shall also have the right to receive communications sent by the said authorities without delay;

(c) The person concerned shall be informed without delay of this right and of rights deriving from relevant treaties, if any, applicable between the States concerned, to correspond and to meet with representatives of the said authorities and to make arrangements with them for his or her legal representation.

8. Migrant workers and members of their families who are deprived of their liberty by arrest or detention shall be entitled to take proceedings before a court, in order that that court may decide without delay on the lawfulness of their detention and order their release if the detention is not lawful. When they attend such proceedings, they shall have the assistance, if necessary without cost to them, of an interpreter, if they cannot understand or speak the language used.

9. Migrant workers and members of their families who have been victims of unlawful arrest or detention shall have an enforceable right to compensation.

Migrant workers and members of their families who are deprived of their liberty shall be treated with humanity and with respect for the inherent dignity of the human person and for their cultural identity.

Every child deprived of liberty shall be treated with humanity and respect for the inherent dignity of the human person, and in a manner which takes into account the needs of persons of his or her age. In particular, every child deprived of liberty shall be separated from adults unless it is considered in the child's best interest not to do so and shall have the right to maintain contact with his or her family through correspondence and visits, save in exceptional circumstances.

Every child deprived of his or her liberty shall have the right to prompt access to legal and other appropriate assistance, as well as the right to challenge the legality of the deprivation of his or her liberty before a court or other competent, independent and impartial authority, and to a prompt decision on any such action.

States Parties shall ensure that if persons with disabilities are deprived of their liberty through any process, they are, on an equal basis with others, entitled to guarantees in accordance with international human rights law and shall be treated in compliance with the objectives and principles of the present Convention, including by provision of reasonable accommodation.

All persons under any form of detention or imprisonment shall be treated in a humane manner and with respect for the inherent dignity of the human person.

Arrest, detention or imprisonment shall only be carried out strictly in accordance with the provisions of the law and by competent officials or persons authorized for that purpose.

The authorities which arrest a person, keep him under detention or investigate the case shall exercise only the powers granted to them under the law and the exercise of these powers shall be subject to recourse to a judicial or other authority.

All detained migrants must be treated humanely and with respect for their inherent dignity. The conditions of their detention must be humane, appropriate and respectful, noting the non-punitive character of the detention in the course of migration proceedings. Detention conditions and treatment must not be such as to impede the ability to challenge the lawfulness of detention, and detention should not be used as a tool to discourage asylum applications.

We commit to ensure that any detention in the context of international migration follows due process, is non-arbitrary, based on law, necessity, proportionality, and individual assessments, is carried out by authorized officials, and for the shortest possible period of time, irrespective of whether detention occurs at the moment of entry, in transit, or proceedings of return, and regardless of the type of place where the detention occurs. We further commit to prioritize non-custodial alternatives to detention that are in line with international law, and to take a human rights-based approach to any detention of migrants, using detention as a measure of last resort only.

To realize this commitment, we will draw from the following actions:

(g) Ensure that all governmental authorities and private actors duly charged with administering immigration detention do so in a way consistent with human rights and are trained on non-discrimination and the prevention of arbitrary arrest and detention in the context of international migration, and are held accountable for violations or abuses of human rights.

Reaffirming that all individuals who have crossed or are seeking to cross international borders are entitled to due process in the assessment of their legal status, entry and stay, we will consider reviewing policies that criminalize cross border movements. We will also pursue alternatives to detention while these assessments are under way. Furthermore, recognizing that detention for the purposes of determining migration status is seldom, if ever, in the best interest of the child, we will use it only as a measure of last resort, in the least restrictive setting, for the shortest possible period of time, under conditions that respect their human rights and in a manner that takes into account, as a primary consideration, the best interest of the child, and we will work towards the ending of this practice.

Paragraph 4 of article 9 entitles anyone who is deprived of liberty by arrest or detention to take proceedings before a court, in order that the court may decide without delay on the lawfulness of the detention and order release if the detention is not lawful. It enshrines the principle of habeas corpus. Review of the factual basis of the detention may, in appropriate circumstances, be limited to review of the reasonableness of a prior determination.

The right applies to all detention by official action or pursuant to official authorization, including detention in connection with criminal proceedings, military detention, security detention, counter-terrorism detention, involuntary hospitalization, immigration detention, detention for extradition and wholly groundless arrests. It also applies to detention for vagrancy or drug addiction, detention for educational purposes of children in conflict with the law and other forms of administrative detention. Detention within the meaning of paragraph 4 also includes house arrest and solitary confinement. When a prisoner is serving the minimum duration of a prison sentence as decided by a court of law after a conviction, either as a sentence for a fixed period of time or as the fixed portion of a potentially longer sentence, paragraph 4 does not require subsequent review of the detention.

The object of the right is release (either unconditional or conditional) from ongoing unlawful detention; compensation for unlawful detention that has already ended is addressed in paragraph 5. Paragraph 4 requires that the reviewing court must have the power to order release from the unlawful detention. When a judicial order of release under paragraph 4 becomes operative (exécutoire), it must be complied with immediately, and continued detention would be arbitrary in violation of article 9, paragraph 1.

The right to bring proceedings applies in principle from the moment of arrest and any substantial waiting period before a detainee can bring a first challenge to detention is impermissible. In general, the detainee has the right to appear in person before the court, especially where such presence would serve the inquiry into the lawfulness of detention or where questions regarding ill-treatment of the detainee arise. The court must have the power to order the detainee brought before it, regardless of whether the detainee has asked to appear.

Unlawful detention includes detention that was lawful at its inception but has become unlawful because the individual has completed serving a sentence of imprisonment or the circumstances that justify the detention have changed. After a court has held that the circumstances justify the detention, an appropriate period of time may pass, depending on the nature of the relevant circumstances, before the individual is entitled to take proceedings again on similar grounds.

'Unlawful' detention includes both detention that violates domestic law and detention that is incompatible with the requirements of article 9, paragraph 1, or with any other relevant provision of the Covenant. While domestic legal systems may establish differing methods for ensuring court review of detention, paragraph 4 requires that there be a judicial remedy for any detention that is unlawful on one of those grounds. For example, the power of a family court to order release of a child from detention that is not in the child’s best interests may satisfy the requirements of paragraph 4 in relevant cases.

Paragraph 4 entitles the individual to take proceedings before 'a court,' which should ordinarily be a court within the judiciary. Exceptionally, for some forms of detention, legislation may provide for proceedings before a specialized tribunal, which must be established by law and must either be independent of the executive and legislative branches or enjoy judicial independence in deciding legal matters in proceedings that are judicial in nature.

Paragraph 4 leaves the option of taking proceedings to the persons being detained or those acting on their behalf; unlike paragraph 3, it does not require automatic initiation of review by the authorities detaining an individual. Laws that exclude a particular category of detainees from the review required by paragraph 4 violate the Covenant. Practices that render such review effectively unavailable to an individual, including incommunicado detention, also amount to a violation. To facilitate effective review, detainees should be afforded prompt and regular access to counsel. Detainees should be informed, in a language they understand, of their right to take proceedings for a decision on the lawfulness of their detention.

Persons deprived of liberty are entitled not merely to take proceedings, but to receive a decision, and without delay. The refusal by a competent court to take a decision on a petition for the release of a detained person violates paragraph 4. The adjudication of the case should take place as expeditiously as possible. Delays attributable to the petitioner do not count as judicial delay.

The Covenant does not require that a court decision upholding the lawfulness of detention be subject to appeal. If a State party does provide for appeal or further instances, the delay may reflect the changing nature of the proceeding and in any event must not be excessive.