"U.S. Immigration and Customs Enforcement (ICE) Homeland Security Investigations (HSI), along with its law enforcement partners from the DEA, FBI, CBP, the Arizona Department of Public Safety and the Scottsdale Police Department, worked with the Government of Mexico to bring Mexican federal police officers into the United States in order to allow them to more safely execute their law enforcement operation in Mexico. The operation, dubbed Mexican Operation Diablo Express, targeted high level members of the Sinaloa cartel who operate in and around Sonoyta, Sonora Mexico and the U.S. border.