Security Council Resolution 2252: para 8(b).

8. Decides that the mandate of UNMISS shall be as follows, and authorizes UNMISS to use all necessary means to perform the following tasks: 

(b) Monitoring, and investigating human rights: 

(ii) To monitor, investigate, verify and report specifically and publicly on violations and abuses committed against children and women, including those involving all forms of sexual and gender-based violence in armed conflict by accelerating the implementation of monitoring, analysis and reporting arrangements on conflict-related sexual violence and by strengthening the monitoring and reporting mechanism for violations and abuses against children;