GAO finds DHS whistleblower retaliation investigations lag years

The report affects DHS employees who filed retaliation complaints, with delays noted through May 2026

Three U.S. Customs and Border Protection Air and Marine Operations aircraft, distant top, conduct a flyover of the U.S. Department of Homeland Security Headquarters, St. Elizabeths

The Government Accountability Office released a report concluding that the Department of Homeland Security's Office of Inspector General has not ensured timely investigations of whistleblower retaliation complaints and that the Secretary of Homeland Security has not made required corrective-action decisions within the statutory 30-day window. The findings bind DHS OIG and the Secretary in handling all retaliation complaints filed under federal whistleblower protections.

GAO examined OIG case data for fiscal years 2018 through 2025 and found that OIG took more than three years to investigate the majority of the 73 retaliation cases it opened and closed, specifically 39 of those cases. OIG officials attributed the delays to case complexity and limited staff, noting a policy focus on investigation quality over timeliness.

Of the 73 cases, 11 were substantiated. The law requires the Secretary to decide on corrective action within 30 days of receiving OIG's report, but none of the 11 substantiated cases received a decision in that period. As of May 2026, the Secretary had decided to take corrective action in five cases, while six remained pending for periods ranging from four months to over two years. DHS officials told GAO there is no designated official or process to ensure timely review of these decisions.

GAO issued three recommendations: OIG should define a measurable timeliness objective, monitor investigation timelines, and evaluate results; the Secretary should decide on corrective action for the six pending substantiated cases; and the Secretary should develop clear procedures and assign responsibility for timely corrective-action decisions. All three recommendations remain open, and both OIG and DHS have indicated agreement with them.

GAO warned that continued delays could increase personal, financial, and professional hardships for complainants and could decrease confidence in DHS whistleblower protections, potentially discouraging future disclosures of wrongdoing.

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