Mexico's Attorney General's Office has summoned Chihuahua Governor María Eugenia Campos Galván to testify regarding the activities of U.S. agents in her state.

The summons represents a significant escalation in the investigation of foreign intelligence operations within Mexican borders. It raises critical questions about state-level cooperation with the CIA and the legality of such operations without federal oversight.

Campos Galván is required to appear in Mexico City on May 27, 2026, at 10 a.m. [1, 2]. The summons was delivered directly to her offices in Chihuahua by two agents from the Fiscalía General de la República (FGR) [3].

Federal prosecutors are seeking an explanation for the field work conducted by agents of the Central Intelligence Agency (CIA) within the state. According to reports, these activities are linked to a case involving a so-called "narcolaboratorio" [4]. While some reports focus specifically on the presence of U.S. agents, others tie the investigation directly to the discovery of this drug laboratory [4, 5].

The governor must now provide a formal account of how these agents operated and whether the state government facilitated their presence. The FGR is investigating the scope of the CIA's involvement, and whether such activities violated Mexican sovereignty or legal protocols regarding foreign intelligence gathering.

This legal move follows increasing scrutiny over the intersection of U.S. security interests and Mexican state governance in border regions. The outcome of the testimony may determine if further charges are brought against state officials or if the investigation expands to include other regional administrations.

The summons represents a significant escalation in the investigation of foreign intelligence operations within Mexican borders.

This summons highlights the tension between state-level security cooperation with the US and the federal government's mandate to control foreign intelligence activities. If the FGR finds that the Chihuahua government bypassed federal channels to allow CIA operations, it could trigger a constitutional crisis regarding sovereignty and lead to legal repercussions for state leadership.