46 Compendium: High Level Review of United Nations Sanctions The Secretariat has now formalised the IAWG as a forum to strengthen interaction with and support for UN sanctions regimes. The IAWG has developed a shared Terms of Reference and Programme of Work, including briefings, training and sharing of expertise to enhance UN system-wide understanding of sanctions issues. 45. The UN Secretariat should develop a clear and coherent system-wide policy on its interaction with UN Security Council sanctions, including operational guidance detailing how different UN entities may (or may not) interact with the sanctions machinery. 46. DPA should raise awareness among national governments and provide policy guidance for UN missions and agencies in the field regarding the objectives, nature and scope of UN sanctions. 47. SCAD should establish a capacity to capture best practices, draw substantive connections between existing sanctions regimes and expert group reports, identify and mobilise UN system expertise, and maintain and develop new guidance on sanctions implementation issues. Such a capacity could be modeled on existing DPKO best practices guidance and policy planning units. E. The Secretary-General The Secretary-General has a central role in giving prominence and exercising leadership for the system-wide implementation of UN sanctions. The Security Council may wish to consider a triennial review of all UN sanctions with the aim of enhancing their effective implementation. Such a review could be undertaken on the basis of a report by the Secretary-General which would provide information on key sanctions trends, assess implementation issues, analyse linkages between Security Council sanctions regimes and other Council-mandated activities, and consider the impact of sanctions measures on human rights, due process as well as on humanitarian work. The Secretary-General could also include a substantive section on UN sanctions and implementation issues in his regular reports to the Security Council. 48. The Secretary-General should provide a report on key sanctions trends, implementation issues, linkages between Security Council sanctions regimes and other Council-mandated activities, including the intended and unintended impact of sanctions measures on human rights, due process, and on humanitarian work.