A/HRC/16/39 56. In line with its previous recommendations (CRC/C/15/Add.185), the Committee recommended that Spain should strengthen its mechanism for collecting and analysing systematically data disaggregated by, inter alia, age, sex and ethnic background on all persons under 18 years of age for all areas covered by the Convention, with special emphasis on Roma children, migrant children, unaccompanied foreign children and children of economically and socially disadvantaged households (CRC/C/ESP/CO/3-4). 57. In considering the report submitted by Bosnia and Herzegovina in compliance with article 12, paragraph 1, of the Optional Protocol to the Convention on the Rights of the Child on the sale of children, child prostitution and child pornography (CRC/C/OPSC/BIH/CO/1), the Committee expressed its appreciation for the adoption of various plans and strategies to enhance social inclusion of children, especially Roma children. The State party was, however, encouraged to strengthen systematic prevention measures, targeting children who are especially vulnerable or at risk, in order to protect them from the offences described under the Optional Protocol. 58. With regard to Montenegro, while welcoming the information provided by the State party on the programmes in place targeting particular groups of children, such as Roma, Ashkali and Egyptian children and children in street situations to enhance social inclusion, the Committee recommended that the State party should undertake systematic prevention activities, including birth registration, targeting children who are especially vulnerable or at risk, by paying special attention to girls in order to prevent them from becoming victims of offences described under the Optional Protocol (CRC/C/MNE/CO/1). B. General comments 59. At its forty-seventh session, held from 4 to 22 October 2010, the Committee on the Elimination of Discrimination against Women adopted general recommendation No. 27 on older women and the protection of their human rights (CEDAW/C/2010/47/GC/1). Referring to the multidimensional aspect of the discrimination experienced by older women, the Committee observed that it was compounded by other forms of discrimination based on sex, gender, ethnic origin, disability, levels of poverty, sexual orientation and gender identity, migrant status, marital and family status, literacy and other grounds. The Committee also observed that older women who are members of minority, ethnic or indigenous groups or who are internally displaced or stateless often experienced a disproportionate degree of discrimination. IV. Special procedures 60. The special procedures mechanisms of the Human Rights Council address either specific country situations or thematic issues in all parts of the world. In discharging their tasks, mandate holders analyse human rights violations and provide recommendations to States and others on measures that could be taken and effective practices which could serve as models when strengthening the promotion and protection of human rights. Minority issues have regularly been addressed in the work of the special procedures. A. Independent expert on minority issues 61. The evaluation of minority issues by the independent expert on minority issues is guided by the Declaration on Minorities. During the reporting period, the activities of the independent expert, included two official country missions – to Colombia, from 1 to 12 February 2010, and Viet Nam, from 5 to 15 July 2010 – to hold consultations on minority 13