Federal immigration officers in seven Southern California counties have been ordered to stop detaining people on the basis of racial stereotypes after a judge reviewed newly disclosed evidence of how agents conducted immigration operations. The preliminary injunction, made public October 29, requires individualized reasonable suspicion for the covered stops and marks a new turn in a case that reached the Supreme Court last year.
U.S. District Judge Maame Ewusi-Mensah Frimpong found that the plaintiffs were likely to establish that immigration agents had used Latino appearance, including its combination with perceived working-class status, as a basis for detentions. The court cited body-camera footage, internal messages containing racial slurs and accounts of Latino U.S. citizens being stopped. Evidence described in the litigation also concerned roving patrols and enforcement operations near workplaces.
Where does the order apply?
The order addresses detentive immigration stops in the Central District of California: Los Angeles, Orange, Riverside, San Bernardino, Ventura, Santa Barbara and San Luis Obispo counties. It does not impose this particular injunction in San Jose or the rest of the Bay Area. It also makes exceptions for ports of entry, checkpoints and functional equivalents of the border.
The critical distinction is between a person's appearance and a legally sufficient reason to stop that particular person. Officers cannot rely on an assumption that someone is unlawfully present merely because they look Latino or look Latino and working class. The injunction does not prohibit immigration enforcement altogether or require officers to ignore evidence that actually supports individualized reasonable suspicion.
What changed after the Supreme Court's stay?
Why is this ruling different from the one the Supreme Court stayed in September 2025? The plaintiffs obtained additional materials through discovery, including video and agent communications, after the earlier proceedings. Frimpong concluded that the renewed motion presented a different evidentiary record, legal arguments and requested relief. The Supreme Court's earlier emergency stay did not itself resolve whether the challenged practices were constitutional.
The judge concluded that the plaintiffs had shown a likelihood of success on claims under the Fourth Amendment, which protects against unreasonable seizures, and the Fifth Amendment's equal-protection component. But a preliminary injunction is not a final trial judgment that an unlawful government policy has been conclusively established. The court also partly certified a class of affected individuals.
What happens next?
The federal government disputes the allegations of racial profiling and has appealed to the U.S. Court of Appeals for the Ninth Circuit. Further appellate orders could alter the injunction. As of the October 29 reporting, the injunction is a consequential restriction on the challenged practice, not a nationwide prohibition on ICE operations.
For residents, the immediate significance is geographic and practical: the ruling targets suspicionless, race-based detentions in the seven covered counties, including stops involving U.S. citizens. People elsewhere still have constitutional protections, but cannot assume this particular court order directly governs enforcement in their county.