Requests the Secretary-General to extend, for a period expiring on 30 November 2012, the Group of Experts established pursuant to resolution 1533 (2004) and renewed by subsequent resolutions and requests the Group of Experts to fulfil its mandate as set out in paragraph 18 of resolution 1807 (2008) and expanded by paragraphs 9 and 10 of resolution 1857 (2008), and to report to the Council in writing, through the Committee, by 18 May 2012 and again before 19 October 2012;