CRC/C/GC/13 representatives and others to report violence against children, including through the use of 24-hour toll-free hotlines and other ICTs. The establishment of reporting mechanisms includes: (a) providing appropriate information to facilitate the making of complaints; (b) participation in investigations and court proceedings; (c) developing protocols which are appropriate for different circumstances and made widely known to children and the general public; (d) establishing related support services for children and families; and (e) training and providing ongoing support for personnel to receive and advance the information received through reporting systems. Reporting mechanisms must be coupled with, and should present themselves as help-oriented services offering public health and social support, rather than as triggering responses which are primarily punitive. Children’s right to be heard and to have their views taken seriously must be respected. In every country, the reporting of instances, suspicion or risk of violence should, at a minimum, be required by professionals working directly with children. When reports are made in good faith, processes must be in place to ensure the protection of the professional making the report. 50. Referral. The person receiving the report should have clear guidance and training on when and how to refer the issue to whichever agency is responsible for coordinating the response. Following this, intersectoral referrals may be made by trained professionals and administrators when children are found to be in need of protection (immediate or longerterm) and specialized support services. Professionals working within the child protection system need to be trained in inter-agency cooperation and protocols for collaboration. The process will involve: (a) a participatory, multi-disciplinary assessment of the short- and long-term needs of the child, caregivers and family, which invites and gives due weight to the child’s views as well as those of the caregivers and family; (b) sharing of the assessment results with the child, caregivers and family; (c) referral of the child and family to a range of services to meet those needs; and (d) follow-up and evaluation of the adequateness of the intervention. 51. Investigation. Investigation of instances of violence, whether reported by the child, a representative or an external party, must be undertaken by qualified professionals who have received role-specific and comprehensive training, and require a child rights-based and child-sensitive approach. Rigorous but child-sensitive investigation procedures will help to ensure that violence is correctly identified and help provide evidence for administrative, civil, child-protection and criminal proceedings. Extreme care must be taken to avoid subjecting the child to further harm through the process of the investigation. Towards this end, all parties are obliged to invite and give due weight to the child’s views. 52. Treatment. “Treatment” is one of the many services needed to “promote physical and psychological recovery and social reintegration” for children who have experienced violence, and must take place “in an environment which fosters the health, self-respect and dignity of the child” (art. 39). In this respect attention must be given to: (a) inviting and giving due weight to the child’s views; (b) the safety of the child; (c) the possible need for her or his immediate safe placement; and (d) the predictable influences of potential interventions on the child’s long-term well-being, health and development. Medical, mental health, social and legal services and support may be required for children upon identification of abuse, as well as longer-term follow-up services. A full range of services, including family group conferencing and other similar practices, should be made available. Services and treatment for perpetrators of violence, especially child perpetrators, are also needed. Children who are aggressive towards other children have often been deprived of a caring family and community environment. They must be regarded as victims of their child-rearing conditions, which imbue them with frustration, hatred and aggression. Educational measures must have priority and be directed to improve their pro-social attitudes, competencies and behaviours. Simultaneously, the life conditions of these children must be examined in order to promote their care and support and that of other children in the family and neighbourhood. In terms of children who harm themselves, it is 20