A/HRC/28/68 be determined, which also incorporate the component of adequate development and survival of the child. 23 C. Training, complaint mechanisms and monitoring 63. An essential safeguard against torture and other forms of ill-treatment is the availability of multidisciplinary and qualified staff working in children’s institutions. Inside the law enforcement, institution and migration systems, children are more vulnerable to human rights violations than adults because of the manner in which judicial and other officials deal with children. 64. A significant number of States lack an independent mechanism to monitor human rights violations not only in detention facilities but also in medical and social care institutions. Moreover, even when legislation exists to provide for the monitoring of such institutions, inadequate human and financial resources and weak legal enforcement mechanisms are no excuse for failure to prevent abuse. 65. Article 25 of the Convention on the Rights of the Child provides for the right of a child who has been placed by the competent authorities for the purposes of care, protection or treatment of his or her physical or mental health to a periodic review of the treatment provided to the child and all other circumstances relevant to his or her placement. In this context, the Special Rapporteur recalls that the possibility of release should be realistic and regularly considered (CRC/C/GC/10, para. 77). He also observes that, in practice, many States fail to apply these rights. Acts of torture and other cruel, inhuman or degrading treatment or punishment are more widespread than they appear owing to the greater vulnerability of children and their lack of capacity to articulate complaints and seek redress (see A/HRC/25/35, paras. 13-17). 66. Effective complaint procedures are an important safeguard against torture and other ill-treatment in all places of detention for children. According to article 37 (d) of the Convention on the Rights of the Child, children, including migrant children, have the right to prompt access to legal aid and other appropriate assistance, as well as the right to challenge the legality of the deprivation of their liberty before a court or other competent, independent and impartial authority, and to a prompt decision on any such action. 67. With regard to migrant children, authorities routinely impede their access to lawyers, non-governmental organizations, service providers, interpreters and other sources of information and protection. Furthermore, children often never meet with their appointed guardian because they are deported before their representative arrives. In some cases, the report of a child’s ill-treatment is routinely ignored by the official guardians. States have similarly failed to implement a legal right to representation for children detained in healthcare settings. Even when States provide a legal right to review, it generally does not cover children placed with parental consent. 68. In January 2014, the Committee on the Rights of the Child, at its sixty-fifth session, adopted a recommendation that the General Assembly request the Secretary-General to conduct an in-depth international study on the issue of children deprived of liberty (A/69/41, annex II). The Special Rapporteur therefore welcomes General Assembly resolution 69/157, in which the Assembly invited the Secretary-General to commission an in-depth global study on children deprived of liberty. 23 14 Rights and guarantees of children in the context of migration and/or in need of international protection, Advisory Opinion of 19 August 2014, paras. 222 and 231233.