United Nations Office of Internal Oversight Services
# Under-Secretary-General Dates in office Nationality
1 Karl Theodor Paschke 1 January 1994 - 31 December 1999 Germany
2 Dileep Nair 24 April 2000 - 23 April 2005 Singapore
3 Inga-Britt Ahlenius 15 July 2005 - 14 July 2010 Sweden
4 Carman Lapointe 14 September 2010 - 6 October 2015 Canada
5 Heidi Mendoza 15 November 2015 - Incumbent Philippines
Under-Secretaries-General
The United Nations Office of Internal Oversight Services (OIOS) is an independent office in the United Nations Secretariat whose mandate is to assist the Secretary-General in fulfilling his internal oversight responsibilities in respect of the resources and staff of the Organization. Specifically, activities include internal audit, investigation, monitoring, evaluation, inspection, reporting and support services to the United Nations Secretariat. Its intended and mandated function is similar to many national government audit organisations, like the Government Accountability Office in the United States. It reports not only to the General Assembly, but also to the Secretary-General. The current head of the OIOS, Under-Secretary-General Heidi Mendoza of Republic of the Philippines, was appointed as Under-Secretary-General for Internal Oversight Services for a five-year term starting on 11 November 2015, succeeding Carman Lapointe of Canada. The office was established in 1994 at the insistence of the United States that the UN take steps to curb waste and corruption, although there are some doubts concerning its effectiveness. Its first head was Under-Secretary-General Karl Theodor Paschke.