CRC/GC/2005/6 page 26 family background; continuity/discontinuity of care in the host country; the desirability of continuity in a child’s upbringing and to the child’s ethnic, religious, cultural and linguistic background (art. 20); the right of the child to preserve his or her family relations (art. 8) and related short, medium and long-term possibilities of family reunion either in the home, host, or resettlement country. Unaccompanied or separated children should never be resettled to a third country if this would undermine or seriously hamper future reunion with their family. 94. States are encouraged to provide resettlement opportunities in order to meet all the resettlement needs related to unaccompanied and separated children. VIII. TRAINING, DATA AND STATISTICS (a) Training of personnel dealing with unaccompanied and separated children 95. Particular attention should be paid to the training of officials working with separated and unaccompanied children and dealing with their cases. Specialized training is equally important for legal representatives, guardians, interpreters and others dealing with separated and unaccompanied children. 96. Such training should be specifically tailored to the needs and rights of the groups concerned. Nevertheless, certain key elements should be included in all training programmes, including: − Principles and provisions of the Convention; − Knowledge of the country of origin of separated and unaccompanied children; − Appropriate interview techniques; − Child development and psychology; − Cultural sensitivity and intercultural communication. 97. Initial training programmes should also be followed up regularly, including through on-the-job learning and professional networks. (b) Data and statistics on separated and unaccompanied children 98. It is the experience of the Committee that data and statistics collected with regard to unaccompanied and separated children tends to be limited to the number of arrivals and/or number of requests for asylum. This data is insufficient for a detailed analysis of the implementation of the rights of such children. Furthermore, data and statistics are often collected by a variety of different ministries or agencies, which can impede further analysis and presents potential concerns with regard to confidentiality and a child’s right to privacy. 99. Accordingly, the development of a detailed and integrated system of data collection on unaccompanied and separated children is a prerequisite for the development of effective policies for the implementation of the rights of such children.