CRC/C/GC/10 page 26 than judicial proceedings (diversion), the number of convicted children and the nature of the sanctions imposed on them. The Committee urges the States parties to systematically collect disaggregated data relevant to the information on the practice of the administration of juvenile justice, and necessary for the development, implementation and evaluation of policies and programmes aiming at the prevention and effective responses to juvenile delinquency in full accordance with the principles and provisions of CRC. 99. The Committee recommends that States parties conduct regular evaluations of their practice of juvenile justice, in particular of the effectiveness of the measures taken, including those concerning discrimination, reintegration and recidivism, preferably carried out by independent academic institutions. Research, as for example on the disparities in the administration of juvenile justice which may amount to discrimination, and developments in the field of juvenile delinquency, such as effective diversion programmes or newly emerging juvenile delinquency activities, will indicate critical points of success and concern. It is important that children are involved in this evaluation and research, in particular those who have been in contact with parts of the juvenile justice system. The privacy of these children and the confidentiality of their cooperation should be fully respected and protected. In this regard, the Committee refers the States parties to the existing international guidelines on the involvement of children in research. -----