The Office of Internal Oversight Services is the internal oversight body of the United Nations. Established in 1994 by the General Assembly, the office assists the Secretary-General in fulfilling his oversight responsibilities in respect of the resources and staff of the Organization through the provision of audit, investigation, inspection, and evaluation services. The Office aims to be an agent of change that promotes responsible administration of resources, a culture of accountability and transparency, and improved programme performance. See more


Improving operational efficiency
INTERNAL AUDIT: The Internal Audit Division performs risk-based audits applying the International Standards for the Professional Practice of Internal Auditing to assist management in establishing and strengthening risk management, internal control and governance using a combination of assurance and advisory services:
Strengthening programmes' impact
EVALUATIONS:The Inspection & Evaluation Division strengthen accountability, learning, relevance, efficiency, effectiveness and impact in the implementation of programmes as well as to ensure the outcomes of evaluation have corresponding impact on strategic planning:
Protecting the UN's integrity
INVESTIGATIONS: The Investigations Division investigates, with assurances of confidentiality reports of possible misconduct and makes recommendations for appropriate action to ensure that the Organization can more effectively promote accountability:
In focus: OIOS hosts course on forensic interviewing of minors
The OIOS Investigation Division hosted a course on forensic interviewing of minors from 10-12 May 2016.  It was the first step in the development of a broader effort and brought together participants from OIOS, the Police Division, the Division for Safety and Security, UNICEF and UNDP to increase capacity and expertise for handling investigations into Sexual Exploitation and Abuse (SEA). Experts from the National Children's Advocacy Center (NCAC), together with OIOS, presented the course built on the concept of a multidisciplinary team approach that pulls together law enforcement, criminal justice,
child protective services and medical and mental health workers into a single, coordinated approach that involves multiple interviews by different parties. The NCAC forensic interview model emphasizes a flexible-thinking and decision-making method for interviewing that can be adapted to children of different ages and cultural backgrounds and is appropriate for interviewing children who may have experienced sexual or physical abuse. As a research-based approach, it is reviewed annually by a panel of practicing experts for appropriate additions or adaptations. See more