A/HRC/2/2 A/HRC/Sub.1/58/36 page 80 changing it, where necessary, the United Nations human rights system needs to involve NGOs, NHRIs, States and intergovernmental organizations in the closest possible participation in and cooperation with its activities. C. The Council’s need for expert advice 20. According to General Assembly resolution 60/251, the mandate of the Council covers the following fields: • Promotion and implementation of human rights obligations, and follow-up to goals and commitments emanating from United Nations conferences and summits.6 There is a role for HRCC to play in establishing guidelines with regard to implementation; • Promotion of advisory services, technical assistance and capacity-building, in consultation with and with the consent of the Member States concerned.7 Basically, this is the function of other components of the existing United Nations human rights system, as well as of OHCHR. Nonetheless, independent experts may provide valuable specialized know-how, useful for the most effective discharge of this Council function; • UPR.8 There is likely to be a need for the advice of independent experts at some stages in the process (see further below); • The complaint procedure (the 1503 confidential procedure).9 HRCC, sitting as a collegial body in plenary meeting, should be assigned once again the function of reviewing the decisions taken by the present Sub-Commission’s Working Group on Communications (as originally established by Economic and Social Council resolution 1503 (XLVIII)) (see further below); • The prevention of human rights violations and a prompt response to emergencies on a non-selective basis.10 This function may require input from the special procedures and the UPR process. It is conceivable that, should the Council so decide, some role could be envisaged for HRCC; 6 Paragraph 5 (d). 7 Paragraph 5 (a). 8 Paragraph 5 (e). 9 Paragraph 6. 10 Paragraph 5 (f).