(a) To give priority to non-custodial measures, when sentencing or deciding on pretrial measures for a child’s sole or primary carer, subject to the need to protect the public and the child, and bearing in mind the gravity of the offence; (b) To identify and promote good practices in relation to the needs and physical, emotional, social and psychological development of babies and children affected by parental detention and imprisonment; Child labour 34. Calls upon all States to translate into concrete action their commitment to the progressive and effective elimination of child labour that is likely to be hazardous or to interfere with the child’s education or to be harmful to the child’s health or physical, mental, spiritual, moral or social development, to eliminate immediately the worst forms of child labour, to promote education as a key strategy in this regard, including the creation of vocational training and apprenticeship programmes and the integration of working children into the formal education system, and to examine and devise economic policies, where necessary, in cooperation with the international community, that address factors contributing to these forms of child labour; 35. Urges all States that have not yet signed and ratified or acceded to the Convention concerning Minimum Age for Admission to Employment, 1973 (No. 138) and the Convention concerning the Prohibition and Immediate Action for the Elimination of the Worst Forms of Child Labour, 1999 (No. 182) of the International Labour Organization to consider doing so; IV. PREVENTION AND ERADICATION OF THE SALE OF CHILDREN, CHILD PROSTITUTION AND CHILD PORNOGRAPHY 36. Calls upon all States: (a) To take all necessary measures to eliminate, criminalize and penalize effectively all forms of sexual exploitation and sexual abuse of children, including within the family or for commercial purposes, child pornography and child prostitution, child trafficking, child sex tourism, the sale of children and their organs,