A/RES/73/155 Rights of the child and Members of Their Families on the human rights of children in the context of international migration; 38. Expresses deep concern regarding the large and growing number of migrant children, particularly those who are unaccompanied or separated from their parents or primary caregivers, who may be particularly vulnerable along their journey, and expresses the commitment to protect the human rights of migrant children, given their vulnerability, in particular unaccompanied migrant children and migrant children with disabilities, to ensure that they receive appropriate protection and assistance and to provide for their health, education and psychosocial d evelopment, ensuring that the best interests of the child are a primary consideration in policies on integration, return and family reunification; 39. Urges States to ensure, in conformity with their international and domestic obligations and commitments, that return is consistent with international law, including international human rights law, and that repatriation mechanisms allow for the identification and special protection of persons in vulnerable situations, including all migrant children, and to take into account the principle of the best interests of the child, clarity of reception and care arrangements and family reunification; 40. Welcomes programmes that allow migrant children to integrate fully into countries of destination, promote a harmonious, inclusive and respectful environment and facilitate family reunification in order to promote the welfare and the best interests of migrant children and adolescents, as applicable under national law, due process and the relevant provisions of the Convention on the Rights of the Child and the Optional Protocols thereto, and to comply with the consular notification and access obligations set forth in the Vienna Convention on Consular Relations 41 so that States may provide child-sensitive consular assistance, as appropriate, including legal assistance; Children and the administration of justice 41. Reaffirms paragraphs 29 to 31 of its resolution 71/177, and calls upon all States to respect and protect the rights of child victims and witnesses and children alleged to have infringed or recognized as having infringed penal law, as well as children of persons alleged to have infringed or recognized as havin g infringed penal law, and to ensure that the arrest, detention or imprisonment of a child should be in conformity with the law and should be used only as a measure of last resort and for the shortest appropriate period of time; 42. Urges States to intensify their efforts to protect children deprived of their liberty from torture and other cruel, inhuman or degrading treatment or punishment, to ensure that, if they are arrested, detained or imprisoned, children are provided with prompt access to legal and other appropriate assistance and have the right to challenge the legality of the deprivation of their liberty before a court or other competent authority and to a prompt decision on any such action and that, from the moment they are arrested, children have the right to maintain contact with their family through correspondence and visits, save in exceptional circumstances, that no child is sentenced or subjected to forced labour, corporal punishment or emotional or physical violence or deprived of access to and provision of health care and services, hygiene and environmental sanitation, nutritious food, access to open space for recreation, education, basic instruction and vocational training and access to safe, confidential and independent mechanisms to report on violence, and that the conditions in such settings are regularly and effectively monitored, and to undertake prompt __________________ 41 12/17 United Nations, Treaty Series, vol. 596, No. 8638. 18-22250