CRC/C/GC/21 mechanisms at the local and national levels, including independent human rights institutions. When domestic remedies are exhausted, access to applicable international human rights mechanisms should be available, including the procedure set up by the Optional Protocol to the Convention on a communications procedure. Reparation measures can include restitution, compensation, rehabilitation, satisfaction and guarantees of nonrepetition of rights violations. 12 Data collection and research 23. In partnership with academia, civil society and the private sector, States should develop systematic, rights-respecting, participatory mechanisms to collect data and share disaggregated information about children in street situations. States must ensure that the collection and use of such information does not stigmatize or harm these children. Collecting data on children in street situations should be integrated into national data collection on children, ensuring that national data do not rely solely on household surveys, but also cover children living outside household settings. Children in street situations should participate in setting the aims and agendas of research and in gathering information, analysing and disseminating research to inform policymaking, and designing specialized interventions. 13 Street situations change rapidly, and research needs to be carried out periodically to ensure policy and programmes are up to date. V. Key articles of the Convention in relation to children in street situations Overview 24. All the rights contained in the Convention and its Optional Protocols are interrelated and indivisible, for children in street situations as for all children. The present general comment should be read in conjunction with all other general comments of the Committee. The present general comment focuses on articles that have particular significance for children in street situations and that have not previously been the focus of general comments by the Committee. For example, although provisions relating to violence, education, juvenile justice and health are clearly important, they feature here as relatively brief references to existing general comments. Some other articles, on the other hand, receive greater scrutiny given their implications for children in street situations and the fact that they have not previously been explored in detail by the Committee. The articles selected below do not imply a predominance of civil and political rights over social, economic and cultural rights for children in street situations. A. Articles of overarching relevance in a child rights approach Article 2 on non-discrimination Non-discrimination on the grounds of social origin, property, birth or other status 25. States must respect and ensure the rights set forth in the Convention for each child within their jurisdiction without discrimination of any kind. However, discrimination is one of the prime causes of children ending up in street situations. Children are then discriminated against on the basis of their connections with the street, that is, on the grounds of their social origin, property, birth or other status, resulting in lifelong negative consequences. The Committee interprets “other status” under article 2 of the Convention to include the street situation of a child or his or her parents and other family members. 12 13 See www.ohchr.org/EN/ProfessionalInterest/Pages/RemedyAndReparation.aspx. See Office of the United Nations High Commissioner for Human Rights (OHCHR), “A Human Rights-Based Approach To Data”, available from www.ohchr.org/Documents/Issues/HRIndicators/GuidanceNoteonApproachtoData.pdf. 9