Almost 400 Jalisco traffic cops were subjected to an unannounced breathalyzer test this week. The exams were carried out by a team from the nighttime “Torito” patrols to detect drunk drivers. The officers were surprised to learn they were to be tested after turning up for work on Monday morning at 6:30 a.m. The tests were carried out en masse soon after the officers had given the traditional weekly salute to the Mexican flag.