A/HRC/40/23 B. United Nations system 71. The High Commissioner recommends that the United Nations system: (a) Continue to provide Sri Lanka with technical and financial support for the development of transitional justice mechanisms, provided that they meet international standards; (b) Apply stringent vetting procedures to Sri Lankan police and military personnel in the selection of persons for peacekeeping operations, military exchanges and training programmes. C. Member States 72. The High Commissioner recommends that Member States: (a) Urge the Human Rights Council to continue its close engagement with the Government of Sri Lanka and to monitor developments in the country; (b) Investigate and prosecute, wherever possible, in particular in accordance with universal jurisdiction principles, those allegedly responsible for such violations as torture, enforced disappearance, war crimes or crimes against humanity; and explore other options to advance accountability in the absence of credible domestic processes. (c) Continue to accompany the people of Sri Lanka in their efforts to address past human rights violations by supporting the establishment of adequate systems of accountability, justice and reconciliation. 15