It is essential for the quality of the administration of juvenile justice that all the professionals involved, inter alia, in law enforcement and the judiciary receive appropriate training on the content and meaning of the provisions of CRC in general, particularly those directly relevant to their daily practice. This training should be organized in a systematic and ongoing manner and should not be limited to information on the relevant national and international legal provisions. It should include information on, inter alia, the social and other causes of juvenile delinquency, psychological and other aspects of the development of children, with special attention to girls and children belonging to minorities or indigenous peoples, the culture and the trends in the world of young people, the dynamics of group activities, and the available measures dealing with children in conflict with the penal law, in particular measures without resorting to judicial proceedings (see chapter IV, section B, above).