Mexico Charges Ex-Prosecutor With Treason Over US Raid Role

Mexico charged Cesar Jauregui, former attorney general of Chihuahua state, with treason on Wednesday, Oct. 21, 2026. Prosecutors say he let United States agents take part in an antidrug operation without federal approval. The rare case has put Mexican law and national sovereignty under intense scrutiny.

It began with a deadly crash on April 19. Two US agents and two Mexican law enforcement officials died in a car accident, prompting immediate questions about the Americans’ work in Chihuahua. News outlets, citing anonymous sources, reported that the agents had worked with state law enforcement to destroy a drug lab.

What the Law Requires

Mexican law requires federal approval for foreign forces to operate on the country’s territory. The constitution also requires Senate approval for any foreign troops to be present in Mexico. Federal Attorney General Ernestina Godoy accused Jauregui of allowing foreign agents to join operations on Mexican soil without first notifying federal officials. A judge ordered him held in pretrial detention while the court considers whether enough evidence exists to proceed.

President Claudia Sheinbaum said after the crash that her government hadn’t known US agents were involved in a drug operation in Chihuahua. “Evidently, the military didn’t know there were people participating who weren’t Mexican citizens,” she told reporters. She called for an investigation into whether state officials had followed the constitution and the National Security Law, which govern foreign forces’ involvement in the country.

Conflicting Accounts

The reason the agents were there remains disputed. Media identified them as members of the Central Intelligence Agency, a US foreign intelligence branch with a history of covert operations. State officials denied that the agents took part in a drug bust. In an April 20 news release, Jauregui “ruled out the involvement of foreign personnel” in state drug operations. He said US instructors had been nearby for a drone-training session, then asked to join a convoy of Mexican law enforcement personnel returning to the airport. “It is worth explaining what happened, in order to clarify the facts that are causing some confusion,” Jauregui said. He resigned as state attorney general later that month.

A Precedent With Political Edges

Matias Gomez Leautaud, an analyst at the Eurasia Group, a US-based risk consultancy firm, told Reuters the charge “seeks to set a precedent and prevent cooperation between [Mexican] states and the US government without the federal government’s coordination and approval.” Sheinbaum’s administration has worked with the US on crime and insecurity, but opposes direct US cooperation with Mexican states without prior federal authorisation.

The history matters. Mexico has endured repeated US intervention, including multiple military invasions that continued into the early 20th century. Concern about US respect for Mexican sovereignty has grown since President Donald Trump returned to office for a second term. Trump has suggested the US could take unilateral military action in Mexico to address cartel drug-trafficking and violence, and has called Mexico’s government ineffective in tackling the problem. “We have to eradicate them,” Trump said of the cartels in March. “We have to knock the hell out of them because they’re getting worse. They’re taking over their country. The cartels are running Mexico.”

Experts say Mexican law defines treason vaguely, broadly covering acts that undermine the country’s sovereignty for the benefit of a foreign entity. Convictions remain rare. The last widely recognised example came in 1867, when Emperor Maximilian faced a court-martial and was later executed for crimes against Mexico. Jauregui belongs to the National Action Party, a conservative political movement. Sheinbaum leads the left-wing Morena party.

Why This Matters:

The case tests who decides how Mexico works with a powerful neighbor on security. The constitution and National Security Law place that authority in federal and Senate hands, and the charge signals that the government intends to enforce those limits. For a country with a long record of US intervention, and a US president openly floating unilateral military action, the rules governing foreign operations serve as a democratic safeguard as well as a legal one.

But the stakes cut both ways. Treason is vaguely defined and rarely prosecuted, so detention in a politically charged case invites scrutiny of due process. How the court handles the evidence, and whether the investigation Sheinbaum called for establishes what the agents were actually doing, will shape public trust in Mexico’s institutions.