Federal Judge Blocks Trump Administration’s Immigration Operations in California Over Probable Cause Concerns
A federal judge in California has issued a preliminary injunction temporarily halting the Trump administration’s immigration enforcement activities in Los Angeles that lack probable cause. The ruling, delivered by District Judge Maame Ewusi-Mensah Frimpong on July 11, responds to a lawsuit filed by multiple immigrant advocacy groups challenging the legality of recent immigration stops and arrests conducted by the Department of Homeland Security (DHS).
The lawsuit alleges that federal agents targeted individuals in Southern California based on racial profiling, language, occupation, and presence in specific locations such as bus stops. The groups argue these operations violate the Fourth and Fifth Amendments of the U.S. Constitution by detaining people without proper warrants or reasonable suspicion.
In her 52-page ruling, Judge Frimpong emphasized that the administration failed to justify the basis for immigration stops and arrests during enforcement operations. She highlighted that the factors used to identify potential undocumented immigrants — such as working in low-wage jobs like car washes or day labor — are insufficient and do not constitute reasonable suspicion.
“The factors that defendants appear to rely on for reasonable suspicion seem no more indicative of illegal presence in the country than of legal presence,” the judge stated, declaring the immigration stops “improper and impermissible.”
As part of the injunction, DHS is ordered to cease detaining individuals solely based on race, spoken language, accent, occupation, or specific geographic locations. The ruling also mandates that detainees held in a basement room at a federal building in Los Angeles must be granted confidential phone access to legal representatives without monitoring, and legal visitation must be available seven days a week with defined minimum hours.
The lawsuit, filed on July 2 by groups including the ACLU Foundation of Southern California, claims federal agents used excessive force in some encounters and detained individuals without warrants, demanding personal information under threat of arrest. The suit underscores alleged violations of constitutional protections and calls for greater accountability in immigration enforcement.
In response, DHS has denied accusations of racial profiling and defended its enforcement operations as highly targeted. Homeland Security Assistant Secretary Tricia McLaughlin stated that officers perform due diligence before arrests, ensuring detainees receive appropriate treatment and communication opportunities with legal counsel and family.
The Trump administration has maintained that recent ICE operations in Los Angeles targeted criminal illegal aliens, including those convicted of serious offenses such as murder, trafficking, and sexual assault. The enforcement efforts sparked protests and civil unrest in early June, prompting President Trump to deploy National Guard and Marines, a move opposed by California Governor Gavin Newsom.
This legal development marks a significant challenge to the Trump administration’s immigration policies in California, emphasizing the need for lawful procedures and protections against unconstitutional profiling.

Sarah Mitchell is a bestselling novelist recognized for her insightful and emotionally resonant stories that explore the complexities of human relationships. Originally from Denver, Colorado, Sarah grew up in a family of teachers who nurtured her curiosity and love for storytelling. She studied psychology at Stanford University, where she became fascinated by the intricacies of human behavior—an interest that would later shape her writing career. Sarah’s novels are praised for their nuanced characters, intricate plots, and ability to capture the subtle tensions that define love, friendship, and family ties. Her breakthrough novel, The Spaces Between Us, became an instant bestseller, lauded for its honest portrayal of strained family relationships and the fragile bonds that hold people together. Since then, she has published several works that continue to captivate audiences around the world. Outside of her writing career, Sarah is passionate about mental health advocacy and often partners with organizations to promote awareness and support for those struggling with emotional well-being. Her personal life is quieter—she enjoys hiking in the Colorado mountains, practicing yoga, and spending time with close friends. With each new book, Sarah Mitchell cements her reputation as a writer who illuminates the beauty and struggles of human connection.