State-held information continues to play a major role in federal immigration enforcement, even in jurisdictions that have passed laws to restrict data sharing. A comprehensive report from the University of Washington has shed light on how federal agencies bypass state-level safeguards to access sensitive records.

According to researchers, laws meant to protect public records often fall short because federal authorities rely on multiple, sometimes overlooked pathways to gather information for enforcement operations.

Methods of Federal Data Access

The University of Washington study examined four primary avenues that Immigration and Customs Enforcement (ICE) and Customs and Border Protection (CBP) use to obtain state-managed records:

  • Direct Database Access: Connecting straight into state information repositories.
  • The Nlets Network: Using the interstate law enforcement computer network to share public safety data.
  • Data Brokers: Acquiring information through commercial intermediaries.
  • Local Law Enforcement Agencies: Accessing records indirectly via local police partnerships.

Researchers highlighted the Nlets system as a particularly common pathway. Federal agents can enter or scan a license plate into the nonprofit network, prompting the issuing state's Department of Motor Vehicles to return vehicle registration details, including the owner's name. Agents can then cross-reference this information with immigration databases.

Examining State Restrictions and Loopholes

The research team investigated enforcement patterns in Maryland, Minnesota, New York, and Washington—four states that have enacted legislation to limit federal access to DMV data. Despite these rules, investigators found that federal agents regularly query state-held vehicle data, with searches frequently preceding immigration arrests by mere minutes.

Angelina Godoy, director of the University of Washington Center for Human Rights, noted that state and local administrators are frequently unaware that these data-sharing channels exist and are actively being utilized. While states like Washington have successfully blocked direct ICE queries of their own data, political will varies regarding other agencies like Border Patrol, and restricting one route often simply shifts usage to another.

Public Safety and Civil Rights Implications

The report emphasizes that aggressive traffic stops facilitated by rapid data queries can carry severe human consequences. Researchers pointed out that rapid database responses—delivered in seconds—frequently lead to high-risk traffic encounters, family separations, and violent enforcement outcomes.

Furthermore, the data-sharing problem extends beyond undocumented individuals, affecting people on student visas, work permits, and various other stages of the immigration process. Because agencies and data vendors often anonymize search logs for security purposes, tracking the exact volume of these queries remains difficult, leaving state leaders grappling with how to effectively secure public data against unintended federal weaponization.

Overcoming Oversight Challenges

Documenting these loopholes proved difficult for researchers, who noted that states like California and Massachusetts denied public-records requests for query logs, while other records were missing entirely. Godoy stressed that these denials indicate a widespread issue that extends far beyond the four states explicitly analyzed in the report.

While vendor-contract limits, downstream-use audits, and public audit results can help restrict unauthorized access, Godoy warned that security measures requiring vendors to anonymize search logs can undermine accountability. With authority divided between governors directing restrictions, legislatures enacting safeguards, and DMVs holding the underlying records, researchers hope policymakers will refocus attention on the human safety impacts of rapid data-sharing during high-risk traffic operations.