California jails transfer hundreds of illegal aliens into federal custody

Since the launch of a federal task force last year, hundreds of undocumented immigrants with criminal records have been transferred from California county jails—including the San Luis Obispo County Jail—into federal custody.

The initiative, dubbed Operation Guardian Angel, was created specifically to neutralize California’s sanctuary state laws. By utilizing federal arrest warrants, U.S. Immigration and Customs Enforcement (ICE) and Department of Justice (DOJ) prosecutors are forcing local jails to hand over individuals they would otherwise be prohibited from detaining for immigration authorities.

According to CalCoastNews, the operation has resulted in the transfer of 362 defendants from seven Southern California counties since May 2025.

How Operation Guardian Angel Works

California's sanctuary state laws, formally established under the California Values Act of 2017, largely restrict local law enforcement agencies from cooperating with federal immigration authorities. Under state law, local jails are generally prevented from honoring ICE detainers—requests to hold an inmate beyond their scheduled release date so federal agents can pick them up.

Operation Guardian Angel circumvents this by shifting the mechanism of transfer. Instead of relying on civil immigration detainers, federal prosecutors and agents secure formal federal arrest warrants for undocumented individuals who have recently been arrested by local law enforcement. Because the warrants are criminal in nature, county jails are legally required to honor them and hand the individual over to federal custody.

The Central District of California—which encompasses San Luis Obispo, Santa Barbara, Ventura, Los Angeles, Orange, Riverside, and San Bernardino counties—is home to an estimated 1.5 million undocumented immigrants. Federal officials argue that state sanctuary policies are protecting dangerous individuals within this population.

“Broken California ‘sanctuary state’ policies endanger the public and cannot go unchallenged by the federal government,” First Assistant United States Attorney Bill Essayli told CalCoastNews. “Operation Guardian Angel is an answer to these misguided policies. Through this task force we are forcing California to do the thing it hates most: handing hundreds of criminal illegal aliens into federal custody to face justice and deportation.”

High-Profile Central Coast Arrests

Since the operation's launch, federal authorities secured 769 arrest warrants, resulting in 362 transfers to federal custody. Of those transferred, 347 were charged with illegally reentering the United States following a prior removal. Other federal charges leveled against defendants include possession of a firearm by an undocumented immigrant, unlawful possession of a firearm by a felon, using a firearm in drug trafficking, and possession of a controlled substance with intent to distribute.

Several recent cases highlight the operation's impact on the Central Coast:

• Héctor Bueno-Moreno: In August 2025, San Luis Obispo County sheriff's deputies arrested the 55-year-old San Luis Obispo resident on a bench warrant out of Santa Barbara County. Federal authorities noted that Bueno-Moreno, an undocumented immigrant from Mexico, had been previously removed from the U.S. in 2001 and 2020, and has a 1995 rape conviction in Kern County Superior Court. He pleaded guilty to improper entry by an alien and was removed to Mexico in September 2025.
• Alejandro Lima Ramírez: The 46-year-old Santa Maria resident, who also uses the alias "Fidel Garcia Vasquez," is a four-time-deported undocumented immigrant. His criminal history includes convictions for drug trafficking, stalking, domestic violence, robbery, theft, and driving under the influence. While in custody for drug and traffic offenses, the Santa Barbara County Sheriff’s Office transferred him to federal custody. He is currently serving a 30-month federal prison sentence after pleading guilty in October 2025 to being an undocumented immigrant found in the U.S. following removal.

Other defendants named by federal authorities include Ricardo López Jaramillo, a 50-year-old Pasadena gang member with multiple felony robbery convictions, and José Cristián Saravia-Sánchez, who was arrested 11 times by local law enforcement between June 2022 and August 2024 before fatally shooting a man in Inglewood in February 2025.

Local Impact and What Comes Next

For San Luis Obispo residents, the federal task force represents a quiet but significant shift in how the local criminal justice system interacts with federal immigration enforcement. While the SLO County Sheriff's Office continues to operate within the bounds of state law, the federal warrants effectively mandate compliance once an undocumented individual is flagged by the DOJ task force.

The operation is part of a broader, nationwide initiative called Operation Take Back America. According to the DOJ, the overarching initiative aims to marshal the full resources of the federal government to eliminate cartels and transnational criminal organizations, and to target undocumented immigrants who commit violent crimes.

As the federal task force continues its operations, local jails across the 805 region will likely remain a focal point for these transfers, bridging the gap between local arrests and federal deportation proceedings.