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About the Office


Promoting the rule of law through objective, independent oversight of the Department of Justice.


To set the standard for innovative, transformative oversight.


Integrity, Independence, Excellence, Transparency, Respect, Agility


The Office of the Inspector General (OIG) in the U.S. Department of Justice (DOJ) is a statutorily created independent entity whose mission is to detect and deter waste, fraud, abuse, and misconduct in the Department of Justice, and to promote economy and efficiency in the Department’s operations. The Inspector General, who is appointed by the President subject to Senate confirmation, reports to the Attorney General and Congress.

The OIG consists of the Immediate Office, Office of General Counsel, and six divisions.  Each division is headed by an Assistant Inspector General.

Inspector General Michael E. HorowitzMichael E. Horowitz was confirmed as Inspector General for the Department of Justice (DOJ) by the U.S. Senate on March 29, 2012. He was sworn in as the fourth confirmed Inspector General on April 16, 2012. See More

Deputy Inspector General – William M. Blier

General Counsel – Jonathan M. Malis

Senior Counsel – John S. Lavinsky

Senior Counsel – Adam Miles

Senior Counsel – Karen Rich

Senior Counsel – Julie McConnell

Chief Innovation Officer – VACANT

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The Audit Division is the OIG’s largest division and is made up of 200 skilled auditors, program analysts, statisticians and other operational staff. Through its multi-disciplined staff, the Audit Division conducts performance audits of Department programs and operations and oversees annual audits of over $35 billion in Department expenditures. The Division also conducts audits of external entities that receive Department funding through its various contracts and grant programs. These audits significantly assist the Department in its efforts to prevent waste, fraud and abuse, and to promote economy and efficiency in its operations. The Division’s robust oversight program is primarily driven by risk-based assessments of Department operations, as well as legal mandates, congressional requests, current events, and the Department’s Top Management and Performance Challenges as identified by the OIG each year.

Assistant Inspector General – Jason R. Malmstrom

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Information for Grant Award Recipients

The Investigations Division investigates alleged violations of fraud, abuse, and integrity laws that govern DOJ employees, operations, grantees, and contractors. Investigations Division Special Agents develop cases for criminal or civil prosecution, or administrative action.

The Investigations Division receives and processes complaints related to fraud, waste, abuse, and misconduct by DOJ employees, contractors, grantees, and other outside parties; opens investigations; and makes arrests.  Our investigations have resulted in criminal and civil restitution and recoveries, forfeitures, fines, and other tracked monies.

Assistant Inspector General – Sarah E. Lake

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The Evaluation and Inspections Division provides the Inspector General with an alternative mechanism to traditional audit and investigative disciplines to assess Department of Justice (Department) programs and activities. Much of the work results in recommendations to decision-makers to streamline operations, reduce unnecessary regulations, improve customer service, and minimize inefficient and ineffective procedures. In addition to assessing Department programs through on-site inspections and program evaluations, the Division conducts special reviews requested by the Inspector General or senior Department management that arise suddenly and need immediate attention.

Acting Assistant Inspector General – Allison E. Russo

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The Oversight and Review Division blends the skills of attorneys, investigators, program analysts, and paralegals to conduct special reviews and investigations of sensitive allegations involving Department employees and operations. O&R’s reviews and investigations are often undertaken at the request of the Attorney General, senior Department managers, or Congress.

Assistant Inspector General – M. Sean O'Neill

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The Information Technology Division executes the OIG’s IT strategic vision and goals by directing technology and business process integration, network administration, implementation of computer hardware and software, cybersecurity, applications development, programming services, policy formulation, and other mission-support activities.

Assistant Inspector General – Sanjay Arnold

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The Management and Planning Division provides the Inspector General with advice on administrative and fiscal policy and assists OIG components by providing services in the areas of planning, budget, finance, quality assurance, personnel, communications, procurement, facilities, telecommunications, security, and general support.

Assistant Inspector General – Mark Hayes

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