Defendants' Motion to Dismiss in Hilton Says an HSI Case-Management Record on a Maine Observer Led to Her March 2026 Border Stop

In their motion to dismiss, stamped 09/18/26, the federal defendants in Hilton v. Mullin say an HSI agent documented Williams’ name and vehicle information in the agency’s case-management system, which “led to the March 2026 border stop referenced in the FAC.” Williams is a named plaintiff. A footnote in the same brief says the agent made subject records on 8 individuals he met in Maine and believed to be “potential threats to law enforcement.” This is the defendants’ own account in a party filing. The brief does not say how the record was used at the border.

The brief expands “ICM” as “Internal Case Management”; plaintiffs’ later opposition calls it “Investigative Case Management.” The CBP deposition plaintiffs cite on the border-stop records is sealed and not in RECAP, so this entry rests on the defendants’ brief alone. The admission sits beside a DHS letter that ICE “does not maintain any kind of database of U.S. citizens protesting ICE activities” while information from non-arrest encounters is “treated as an official government record.”

Related: 2026-01-21–ice-operation-catch-of-the-day-maine-launched.