Across 74 federal agencies, a network of Inspector General offices operates with a mandate that sounds simple but proves complicated in practice: find waste, fraud, and abuse, and report it — to agency heads, to Congress, and to the public. IGs are not prosecutors. They cannot indict anyone. But their reports can trigger congressional investigations, criminal referrals, and the kind of sustained public attention that leads to meaningful accountability.
They are also, by design, uncomfortable to have around. Which is why understanding what happens when they are sidelined, dismissed, or defunded matters as much as understanding what they do when they're working.
The Origins of Independent Oversight
The Inspector General Act of 1978 was a direct product of Watergate and the wave of federal corruption investigations that followed it. Congress recognized that agencies had a structural incentive to investigate themselves gently, if at all, and that external oversight mechanisms — the GAO, congressional committees — lacked the internal access necessary to catch problems before they became scandals.
The solution was a hybrid: investigators who would be housed inside agencies, with access to their records and personnel, but appointed by the President and confirmed by the Senate, and reporting simultaneously to both the agency head and Congress. That dual-reporting structure is the source of both their effectiveness and their vulnerability.
What IGs Actually Do
On an ordinary day, an Inspector General office conducts audits — systematic examinations of agency programs to determine whether money is being spent as Congress intended, whether contracts are being awarded without conflicts of interest, and whether agency data is being reported accurately. These audits are often unglamorous. They produce lengthy reports that rarely make headlines. But over time, they create a documented record of agency performance that congressional overseers and journalists can use.
IGs also conduct investigations — targeted inquiries triggered by complaints, referrals, or the findings of their own audits. These can result in criminal referrals to the Department of Justice, civil referrals to the agency for administrative action, or reports to Congress detailing misconduct that falls short of criminal behavior but warrants attention.
"An IG can't put anyone in jail. But an IG can make it much harder to pretend the problem doesn't exist."
The Removal Question
Under current law, a president can remove an Inspector General, but must notify Congress 30 days in advance and provide a reason. That requirement, added to the IG Act in 2022, was a response to a wave of IG dismissals in 2020 that critics argued were intended to remove oversight of sensitive programs.
The notice requirement has not proven to be an insurmountable barrier. An IG who is notified of removal 30 days in advance can continue to operate during that period, but the chilling effect on ongoing investigations is significant. Sources dry up. Referrals get delayed. The institutional knowledge that experienced investigators carry often departs with them.
More subtle than outright removal is the practice of leaving IG positions vacant for extended periods. When an IG is dismissed or departs and no permanent replacement is named, the office is typically led by a "principal deputy" who lacks the statutory authority of a Senate-confirmed IG and who has a reasonable incentive to avoid the kind of aggressive oversight that led to their predecessor's departure.
What Independent Oversight Looks Like in Practice
When the system works, it produces results that have real-world impact regardless of which party is in power. The Department of Defense IG has documented procurement fraud that resulted in billions in recovered funds. The Department of Health and Human Services IG has identified Medicare billing schemes. The Justice Department IG produced a detailed examination of the FBI's handling of the Clinton email investigation that was critical of leadership decisions made under both Republican and Democratic administrations.
The track record is genuinely bipartisan, which is one reason the IG system has historically enjoyed support from both parties — right up until a particular administration finds itself on the receiving end of a particular investigation.
What to Watch For
The health of the IG system can be measured in a few concrete ways: how many offices currently have vacant permanent IG positions, how frequently IGs are testifying before Congress, and whether their reports are being released publicly or classified in ways that limit transparency. All three metrics are worth tracking, and Left on Red will do so as part of our ongoing Ethics Watch coverage.