(b) The establishment of the Coordination Panel on technical advice and assistance in juvenile justice in order to facilitate the coordination of activities in this field undertaken by relevant entities of the United Nations system as well as non-governmental organizations, professional groups and academic societies involved in the provision of technical advice and assistance; 28. Calls upon States: (a) To ensure that all structures, procedures and programmes in the administration of justice with regard to children who infringe the penal law promote their re-education and rehabilitation, encouraging, whenever appropriate and desirable, measures for dealing with such children without resorting to judicial proceedings, and providing that human rights and legal safeguards are fully respected; (b) To take appropriate steps to ensure compliance with the principle that depriving children of their liberty should be used only as a measure of last resort and for the shortest appropriate period of time, in particular before trial, and to ensure that, if they are arrested, detained or imprisoned, children are separated from adults, to the greatest extent feasible, unless it is considered in their best interest not to do so; (c) Also to take appropriate steps to ensure that no child in detention is deprived of the access to and provision of health-care services, hygiene and environmental sanitation, education and basic instruction, taking into consideration the special needs of children with disabilities in detention, in accordance with the Convention on the Rights of the Child; (d) Parties to comply with the Convention, in their national legislation and practice, and all States to bear in mind the Guidelines for Action on Children in the Criminal Justice System which appear in the annex to Economic and Social Council resolution 1997/30 of 21 July 1997, the United Nations Guidelines for the Prevention of Juvenile Delinquency (The Riyadh Guidelines) adopted by the General Assembly in resolution 45/112 of 14 December 1990, the United Nations Standard Minimum Rules for the Administration of Juvenile Justice (The Beijing Rules) adopted by the Assembly in resolution 40/33 of 29 November 1985 and the United Nations Rules for the Protection of Juveniles Deprived of their Liberty adopted by the Assembly in resolution 45/113 of 14 December 1990, taking into account the best interest of the child; IX Promotion of the rights of children with disabilities 29. Welcomes: page 18