A/HRC/9/28 page 19 (b) Requests States to effectively promote and protect the human rights and fundamental freedoms of all migrants, especially those of women and children, regardless of their immigration status, in conformity with the Universal Declaration of Human Rights and the international instruments to which they are party; (c) Expresses concern at legislation and measures adopted by some States that may restrict the human rights and fundamental freedoms of migrants, and reaffirms that, when exercising their sovereign right to enact and implement migratory and border security measures, States have the duty to comply with their obligations under international law, including international human rights law, in order to ensure full respect for the human rights of migrants; (d) Calls upon States to observe national legislation and applicable international legal instruments to which they are party when enacting national security measures, in order to respect the human rights of migrants; (e) Takes note of action taken by several special procedures of the Council towards the effective prevention of violations of human rights of migrants, including through joint statements, and encourages them to continue with their collaborative efforts to this end within their respective mandates; (f) Calls upon States that have not done so to consider signing and ratifying or acceding to the International Convention on the Protection of the Rights of All Migrant Workers and Members of Their Families as a matter of priority, and requests the Secretary-General to continue his efforts to promote and to raise awareness of the Convention; 2. Also reaffirms the duty of States to effectively promote and protect the human rights and fundamental freedoms of all migrants, especially those of women and children, regardless of their immigration status, in conformity with the Universal Declaration of Human Rights and the international instruments to which they are party, and therefore: (a) Urges all States to adopt effective measures to put an end to the arbitrary arrest and detention of migrants and to take actions to prevent and punish any form of illegal deprivation of liberty of migrants by individuals or groups; (b) Takes note with appreciation of States that have successfully implemented alternative measures to detention for undocumented migrants and requests the Special Rapporteur, other special procedures of the Council and the High Commissioner for Human Rights to pay special attention to cases of arbitrary detention of migrants, particularly of migrant children and adolescents; (c) Requests States to adopt concrete measures in order to prevent the violation of the human rights of migrants while in transit, including in ports and airports and at borders and migration checkpoints, and to train public officials who work in those facilities and in border areas to treat migrants and their families respectfully and in accordance with the law;