CRC/C/BGD/CO/4 page 24 maintain regular contact with their families, and to review the decision of detention with a view to its withdrawal; (f) Adopt a global and national policy in prevention and promotion of alternative measures to detention such as diversion, probation, counselling, community service or suspended sentences, wherever possible; (g) Provide children, both victims and accused, with adequate legal and other assistance at an early stage of the procedure and throughout the legal proceedings; (h) establish an independent body for the monitoring of detention conditions and receiving and processing complaints by children in detention; (i) Request further technical assistance in the area of juvenile justice and police training from the Interagency Panel on Juvenile Justice, which includes UNODC, UNICEF, OHCHR, and NGOs. Protection of witnesses and victims of crimes 94. The Committee recommends that the State party ensure, through adequate legal provisions and regulations, that all child victims and or witnesses of crimes, e.g. child victims of abuse, domestic violence, sexual and economic exploitation, abduction, and trafficking and witnesses of such crimes, are provided with the protection required by the Convention and that it take fully into account the United Nations Guidelines on Justice in Matters Involving Child Victims and Witnesses of Crime (annexed to Economic and Social Council resolution 2005/20 of 22 July 2005). 9. Ratification of international human rights instruments 95. The Committee expresses regret that the State party has not yet ratified or acceded to several international human rights instruments of critical importance for the protection of the rights of children, including those already referred to in these concluding observations on the minimum age of employment, human trafficking, and refugees. 96. The Committee recommends that the State party ratify the core United Nations human rights treaties and their Protocols to which it is not yet a party, namely, the International Convention on the Protection of the Rights of All Migrant Workers and Members of Their Families, the International Convention on the Protection of All Persons from Enforced Disappearance, the Optional Protocol to the Convention against Torture and Other Cruel, Inhuman and Degrading Treatment and Punishment, the Optional Protocol to the Covenant on Economic, Social and Cultural Rights and the Optional Protocols to the Covenant on Civil and Political Rights. 10. Follow-up and dissemination Follow-up 97. The Committee recommends that the State party take all appropriate measures to ensure full implementation of the present recommendations, inter alia, by transmitting