A/HRC/9/21 page 7 20. Based on her professional experience and her work with associations in children’s matters, the Special Rapporteur feels that United Nations institutions, including the mandates of special procedures such as her own, can be difficult for individuals and associations to understand and use, particularly at the local level and especially where there is a lack of familiarity with international human rights promotion and protection procedures. She considers it necessary to seek to improve communication with these partners in order to derive the maximum benefit from their experience and knowledge, and from the wealth of information they gather in the course of their practical day-to-day work. The Special Rapporteur also wishes to emphasize the importance to child victims and vulnerable children of information and communication concerning her mandate. C. Legal framework 21. As indicated above, the Special Rapporteur’s framework for action is established by the Optional Protocol to the Convention on the Rights of the Child on the sale of children, child prostitution and child pornography and the Convention itself, these being the most specific international legal instruments on the subject. She will also draw inspiration from the general comments and decisions of the Committee on the Rights of the Child. 22. To the extent that the situations covered by her mandate are multifaceted and could have implications for the enjoyment by actual or potential victims of a wide range of civil, cultural economic, political and social rights, the Universal Declaration of Human Rights, the International Covenant on Civil and Political Rights and the International Covenant on Economic, Social and Cultural Rights also form a natural legal framework for the mandate; again, the Special Rapporteur will take into consideration treaty bodies’ decisions, general comments and, where appropriate, case law. 23. The Special Rapporteur will also take other international human rights instruments into account, and some other international agreements that have an impact on the situation of actual or potential child victims of sale, prostitution or pornography, such as ILO Convention No. 182 (1999) concerning the Prohibition and Immediate Action for the Elimination of the Worst Forms of Child Labour; ILO Convention No. 138 (1973) concerning Minimum Age for Admission to Employment; and ILO Convention No. 105 (1957) concerning the Abolition of Forced Labour; the Declaration on Social and Legal Principles relating to the Protection and Welfare of Children, with special reference to Foster Placement and Adoption Nationally and Internationally;4 the United Nations Standard Minimum Rules for the Administration of Juvenile Justice (Beijing Rules);5 the United Nations Convention against Transnational Organized Crime6 and its Protocols, the Protocol to Prevent, Suppress and Punish Trafficking in Persons, especially Women and Children and the Protocol against the Smuggling of Migrants by Land, Sea and Air. 4 General Assembly resolution 41/85. 5 General Assembly resolution 40/33. 6 General Assembly resolution 55/25.