United Farm Workers, et al., v. Kristi Noem, et al., No. 1:25-cv-00246 (E.D. Cal., filed Feb. 26, 2025)

In January 2025, Border Patrol agents travelled more than 300 miles inland to Bakersfield, California and initiated “Operation Return to Sender,” a weeklong sweep of Kern County targeting primarily Latino neighborhoods. During the operation, Border Patrol stopped, detained, and arrested people of color or those who appeared to be farmworkers or day laborers, without reasonable suspicion that they were removable. Border Patrol violated federal law by conducting warrantless arrests without making individualized assessments of flight risk. Border Patrol transported people to El Centro Border Patrol station, detained them incommunicado, and coerced people into accepting voluntary departure.

On February 26, 2025, United Farm Workers and five individuals—including a U.S. citizen and a lawful permanent resident—sued on behalf of three proposed classes of people targeted by Border Patrol. Plaintiffs argued that Border Patrol’s enforcement actions violated the Immigration and Nationality Act, 8 U.S.C. § 1357, and immigration regulations because they arrested people without a warrant without probable cause of flight risk. Plaintiffs also brought claims under the Fourth Amendment, for suspicionless stops, and the Fifth Amendment, for coerced voluntary departure. Plaintiffs subsequently sought a preliminary injunction on behalf of two classes – Suspicionless Stop Class and Warrantless Arrest Class.

On April 29, 2025, the district court provisionally certified the Suspicionless Stop Class and the Warrantless Arrest Class. The court then granted Plaintiffs’ motion for a preliminary injunction, enjoining Border Patrol from: (a) making stops without reasonable suspicion the person is present in the United States in violation of U.S. immigration law and (b) making warrantless arrests without probable cause of flight risk. The court further ordered Border Patrol to (a) document arrests and provide that documentation to class counsel, (b) broadcast a policy regarding stops and arrests, and (c) train Border Patrol agents in the requirements of the policy and the preliminary injunction. Defendants have appealed the decision to the Ninth Circuit and filed a motion to dismiss with the district court.

On October 6, 2025, the district court addressed the government’s motion to dismiss and discussion of the U.S. Supreme Court’s September 8, 2025 order in Noem v. Vasquez Perdomo, in which it raises serious questions as to Plaintiffs’ standing to pursue their claims for prospective injunctive relief. The court found its evaluation of the motion to dismiss—and by extension the motion to enforce—requires further briefing on this subject.  On January 25, 2026, the court denied the defendants’ motion to stay all proceedings. The court also concluded that it has no jurisdiction to consider some of the arguments raised in the pending motion to dismiss including arguments on standing, mootness, and arguments related to the issuance of musters pertaining to stops and arrests. However, the court found that it could proceed on the remaining arguments including the Fourth Amendment claims in a separate hearing on the remaining issues. A hearing on the motions to enforce and dismiss was held on February 5, 2026, where the court heard both sides.  

Oral argument before the Ninth Circuit will be held on April 22, 2026.

Counsel: ACLU Foundation of Northern California ǀ ACLU Foundation of Southern California ǀ ACLU Foundation of San Diego & Imperial Counties ǀ Keker, Van Nest & Peters LLP

Contact: Bree Bernwanger ǀ ACLU Northern California ǀ bbernwanger@aclunc.org