Source: Office of United States Attorneys
SAN DIEGO – Federal prosecutors in the Southern District of California filed 134 border-related cases this week, including charges of bringing in aliens for financial gain, reentering the U.S. after deportation, and importation of controlled substances.
The U.S. Attorney’s Office for the Southern District of California is the fourth-busiest federal district, largely due to a high volume of border-related crimes. This district, encompassing San Diego and Imperial counties, shares a 140-mile border with Mexico. It includes the San Ysidro Port of Entry, the world’s busiest land border crossing, connecting San Diego (America’s eighth largest city) and Tijuana (Mexico’s second largest city).
In addition to reactive border-related crimes, the Southern District of California also prosecutes a significant number of proactive cases related to terrorism, organized crime, drugs, white-collar fraud, violent crime, cybercrime, human trafficking and national security. Recent developments in those and other significant areas of prosecution can be found here.
A sample of border-related arrests this week:
- On May 16, Elizabeth Janeth Ramirez-Martinez, a U.S. citizen, was arrested and charged with Bringing in Aliens for Financial Gain. According to a complaint, Ramirez-Martinez was stopped at the Otay Mesa Port of Entry by Customs and Border Protection officers, who found a Vietnamese national crammed into a compartment in the dash of her vehicle. The undocumented immigrant told officers that before they made their way to the border, the defendant had placed him in the compartment and secured it using screws.
- On May 19, Fernanda Barrios Monzon, a legal permanent resident of the U.S., was arrested and charged with Bringing in Unlawful Aliens without Presentation and Importation of a Controlled Substance. According to a complaint, the defendant drove her vehicle through the San Ysidro Port of Entry but was stopped when a Customs and Border Protection officer noticed a man lying on the floor of the vehicle, under the feet of the defendant’s children. The officer further discovered 271 pounds of methamphetamine hidden throughout the vehicle.
- On May 20, Gustavo Hernandez Oliveros, was arrested and charged with Deported Alien Found in the U.S. According to a complaint, Border Patrol agents located Hernandez Oliveros hiding in brush about two miles north of the border and two miles east of the Otay Mesa Port of Entry. He was previously deported in November 2018.
Also recently, a number of defendants with criminal records were convicted by a jury or sentenced for border-related crimes such as illegally re-entering the U.S. after previous deportation. Here are a few of those cases:
- On May 23, Jair Valdez-Hernandez, a Mexican national who was previously convicted of felony attempted carjacking in 2017, was sentenced in federal court to 10 months in custody for illegally entering the U.S. After illegally reentering the U.S., in July 2024, Valdez-Hernandez was convicted of corporal injury to a spouse/cohabitant and within the two months following that conviction was arrested twice for violating domestic violence protective orders.
- On May 23, Rogelio Herrera-Rodriguez, a Mexican national who was previously convicted of voluntary manslaughter and corporal injury to a spouse causing great bodily injury and removed from the United States, was sentenced in federal court to 24 months for again reentering the U.S. illegally.
- On May 23, Sacramento Sagrero-Pahua, a Mexican national, was sentenced in federal court to 36 months in custody for bringing aliens to the United States for financial gain. On August 26, 2023, Sagrero-Pahua guided a group of eight illegal aliens into the United States near Otay Mountain before being caught by Border Patrol agents. Among the group Sagrero-Pahua guided was an armed guard, who brought a gun with him to protect the group as it traveled toward the U.S.-Mexico border.
- On May 19, 2025, Oscar Eduardo Audelo-Rodriguez, a Mexican national, who admitted to fleeing border patrol agents by boat in Mission Bay, was sentenced in federal court to 8 months in custody for alien smuggling.
Pursuant to the Department’s Operation Take Back America priorities, federal law enforcement has focused immigration prosecutions on undocumented aliens who are engaged in criminal activity in the U.S., including those who commit drug and firearms crimes, who have serious criminal records, or who have active warrants for their arrest. Federal authorities have also been prioritizing investigations and prosecutions against drug, firearm, and human smugglers and those who endanger and threaten the safety of our communities and the law enforcement officers who protect the community.
The immigration cases were referred or supported by federal law enforcement partners, including Homeland Security Investigations (HSI), Immigration and Customs Enforcement’s Enforcement and Removal Operations (ICE ERO), Customs and Border Protection, U.S. Border Patrol, the Drug Enforcement Administration (DEA), the Federal Bureau of Investigation (FBI), the U.S. Marshals Service (USMS), and the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), with the support and assistance of state and local law enforcement partners.
Indictments and criminal complaints are merely allegations and all defendants are presumed innocent until proven guilty beyond a reasonable doubt in a court of law.