CRC/C/15/Add.269 page 10 47. The Committee also recommends that the State party provide detailed information about the growing practice of kafalah abroad and ensure that it only takes place when it is in the best interests of the child and with full respect for the rights of the child. Illicit transfer and non-return of children abroad 48. The Committee is deeply concerned at the difficulty in implementing judicial decisions regarding custody and visitation rights for Algerian children with one parent living outside Algeria. It further expresses its concern that child abduction is particularly prevalent among children of mixed marriages. 49. The Committee recommends that the State party undertake all necessary efforts to prevent and combat illicit transfer and non-return of children and to ensure proper and expeditious implementation of judicial decisions made with regard to custody and visiting rights. It further recommends that the State party strengthen dialogue and consultation with relevant countries, notably those with which the State party has signed an agreement, regarding custody or visitation rights, and ratify the Hague Convention on Civil Aspects of International Child Abduction of 1980. Violence, abuse, ill-treatment and neglect 50. While noting with appreciation the formulation of a national strategy against child abuse, the Committee deeply regrets that insufficient measures are being taken to address the serious problem of child abuse and ill-treatment in the State party. The Committee is concerned about the lack of reporting of and coordination between medical and social services and legal authorities in child abuse cases. In addition, the Committee notes with concern that professionals working with and for children are inadequately trained to identify, report and manage child abuse and ill-treatment cases. The Committee also notes with concern that owing to prevailing cultural practices and traditional norms, so-called intra-familial problems such as child abuse, ill-treatment and domestic violence are considered as strictly private family matters and only very rarely reported to authorities. 51. In light of article 19, other relevant provisions of the Convention and the recommendations of the Committee adopted on its days of general discussion on children and violence (CRC/C/100, para. 866 and CRC/C/111, paras. 701-745), the Committee urges the State party: (a) To take effective legislative measures to prohibit all forms of physical, sexual and mental violence against children, including sexual abuse in the family; (b) To conduct a study to assess the nature and extent of ill-treatment and abuse of children, develop indicators and design policies and programmes to address it; (c) To develop and implement an effective system for the identification and reporting of child abuse and ill-treatment cases;