MEXICO CITY (AP) — A Mexican judge on Monday acquitted a former drug czar who was charged with organized crime after he allegedly accepted $450,000 to leak details of police operations against members of the Pacific cartel, an alliance once led by the Sinaloa drug cartel.

Noe Ramirez was Mexico’s top anti-drug prosecutor and the highest-ranking law enforcement official detained in 2008 as part of then President Felipe Calderon’s sweeping effort to weed out corrupt officials with ties to organized crime.