A top Mexican official is shown to have been an informant for the cartel.

Wednesday, U.S. prosecutors have let information loose regarding an embarrassing and horrific situation involving Mexican police. New documents, made public today, state that the commander for the Mexican law enforcement’s intelligence-sharing unit was giving pertinent information to the Beltran Leyva drug cartel in exchange for monetary kickbacks.

The AP reports:

Ivan Reyes Arzate was named in a U.S. district court indictment, just hours after Mexico’s federal police revealed an unnamed agent had been charged with obstructing an investigation. What Mexican police commissioner Manelich Castilla did not reveal was that Ivan Reyes Arzate, the officer charged, was the commander of the federal police agency’s sensitive investigative unit.

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The important things to note about this case are as follows:

The U.S. have been integral in vetting and training the officers in the unit. There have been problems in the past from top commanders who “refused to be vetted or submit to background checks.” This indictment is fresh on the heels of the scandal involving the attorney general for the Mexican state of Nayarit which we reported on here at TGP.

This is only part of an ongoing saga between Mexico and the United States and another reason why we should protect our border.