The Office of the Inspector General (OIG) covers AuditMonitoring & EvaluationInvestigations and Inspection. In merging the different functions into OIG, more effective synergy of the oversight functions has been created inside the Organization. Independence in performing its tasks is a key aspect of OIG's work.

The purpose of the Internal Audit function is to provide independent, objective assurance and consulting services designed to add value and improve the Organization’s operations. It helps the Organization accomplish its objectives and maintain a strong internal control framework through a systematic and disciplined approach to evaluating and improving the effectiveness of risk management, control and overall management processes.

IOM is committed to publish the results of its internal audits for the sake of better transparency and accountability alongside the UN and other international agencies starting 2018 with the disclosure of Executive Summaries of Internal Audit reports released from 2017 onwards.

Internal Audit Executive Summaries are uploaded here

Evaluation is an important management tool. It is an integral part of IOM's core functions, and the mainstreaming of evaluation results in IOM's work is essential. Evaluation is now well-established in IOM and increasing emphasis is being placed on it. The Inspector General reports directly to the Director General, who endorses the conclusions and recommendations of the evaluations performed by OIG.

The Investigation function supports OIG through the conduct of administrative investigations and inspections. 

OIG’s scope of work requires that “…allegations of irregularities (fraud, waste, abuse of authority and other misconduct) are assessed and, where warranted, are investigated." The investigative function provides the Inspector General with the capability to fulfil this responsibility.

In addition, and in accordance with OIG’s Charter, the investigative function conducts investigations in accordance with the standards established by the Conference of International Investigators’ Uniform Principles and Guidelines for Investigations.  Accordingly, OIG administrative investigations adhere to the principles of “…objectivity, impartiality, and fairness…”

The fundamental purpose of the investigation function, similar to that of evaluation and internal audit, is to support the Inspector General and OIG deliver “independent, objective assurance, systematic review and advice to add value and improve programme/project design, delivery and operations” to IOM and, through the conduct of administrative investigations and inspections, enable the Inspector General to provide a “consolidated internal oversight mechanism”.