Fentanyl investigations and seizures dropped during Trump’s immigration crackdown, federal watchdog says

Fentanyl Enforcement Collapsed as Agents Were Redirected to Immigration Arrests, Watchdog Finds

Goldlaner.com – The federal agency tasked with dismantling cartel networks and tracing the flow of synthetic opioids into American communities spent most of fiscal year 2025 doing something entirely different: making immigration arrests. A newly released audit by the Department of Homeland Security’s inspector general reveals that the administration’s sweeping immigration enforcement campaign drained resources from fentanyl investigations at such a scale that one field office reported dedicating roughly 99 percent of its caseload to immigration work, leaving virtually no capacity for drug-related probes.

The finding lands against a backdrop of escalating public-health urgency. Fentanyl has become the leading cause of overdose deaths in the United States, and Homeland Security Investigations (HSI), the investigative arm of Immigration and Customs Enforcement, has long served as a critical node in the federal effort to intercept shipments, identify trafficking corridors, and prosecute organized crime groups operating out of Mexico and Central America. The inspector general’s review, conducted between March 2025 and May 2026, examined how HSI’s role in disrupting fentanyl supply chains was affected by shifting departmental priorities, interagency coordination gaps, and resource constraints.

A 31-Percent Collapse in Investigation Hours

The audit traces a clear inflection point. Across fiscal years 2022 through 2024, agents had been steadily increasing the time devoted to fentanyl-related work. Then, in fiscal year 2025, hours spent on those investigations fell by approximately 31 percent compared with the prior year. Simultaneously, immigration enforcement recorded the largest surge of any investigative category, climbing by more than 1.7 million hours — an increase exceeding 800 percent.

“In FY 2025, Department priorities shifted toward immigration enforcement. Accordingly, HSI prioritized immigration enforcement over fentanyl-related criminal investigations,” the report found.

The downstream effects were immediate. The number of new fentanyl investigations opened by HSI dropped 24 percent year over year. At a single field office, initiated cases fell from 30 in fiscal year 2024 to just 13 in fiscal year 2025. Seizures followed the same downward trajectory: HSI’s fentanyl seizures declined by 39 percent in fiscal year 2025, even as the Drug Enforcement Administration logged several record-breaking fentanyl seizures during the same period — a divergence the watchdog flagged as particularly telling.

Teams Gutted, Quotas Pressured

Interviews with agents across HSI offices nationwide, conducted by the inspector general’s staff, painted a picture of an all-hands mobilization toward the administration’s immigration agenda. One drug investigation team originally staffed with seven agents was pared down to two or three members after colleagues were reassigned to immigration cases. Under what the report characterizes as tremendous pressure to meet White House-imposed quotas, HSI pivoted much of its operational focus in fiscal year 2025 toward immigration arrests, pulling personnel away from ongoing fentanyl work.

The inspector general’s audit also identified structural obstacles beyond the staffing drain. Technical limitations within HSI’s investigative toolset, chronic shortfalls in necessary funding, and inconsistent case referrals from partner agencies such as U.S. Customs and Border Protection all compounded the agency’s diminished capacity to pursue fentanyl supply chains.

Four Recommendations, Full Concurrence

The watchdog closed its review with four recommendations directed at ICE. The agency concurred with all four. Among them was a call for a staffing-level review designed

“to ensure an appropriate level of coverage commensurate with the relative priority of fentanyl investigations.”

ICE HSI accepted the recommendation and committed to reviewing its staffing posture and determining next steps, setting an estimated completion date of June 30, 2027. In a separate statement, a Homeland Security spokesperson said HSI “is working closely with the Department to track metrics and execute goals to assess how well ICE-HSI is combating fentanyl,” and noted that in fiscal year 2026 an action plan was launched as an Agency Priority Goal with defined milestones for countering fentanyl trafficking.

Why the Numbers Matter

The report’s timing underscores a tension at the heart of federal law-enforcement resourcing. Fentanyl’s supply chain runs through maritime ports, overland corridors, and air cargo lanes — precisely the domains where HSI’s expertise in cross-border organized crime gives it a distinct operational edge over domestic agencies. When that expertise is redirected toward domestic immigration enforcement, the gap it leaves is not easily filled by other components of the federal apparatus. The DEA’s record seizures in 2025, cited in the report, suggest that other agencies stepped up at the margin, yet the inspector general’s framing implies that HSI’s absence from the equation weakened the overall disruption effort rather than simply shifting workload.

For policymakers and oversight bodies watching the June 2027 staffing review, the central question will be whether the agency can restore investigative capacity without triggering another round of political pressure to prioritize immigration quotas. The inspector general’s audit does not answer that question; it documents what happened when the answer was, effectively, already decided.