Today in Dirty Police

Sixty-four cadets in Monterrey were tossed from the program for failing their vetting tests, while at least 150 cops in Torreón, which has had its fair share of police problems in the past, will be fired in the coming days for failing the same. The regular appearance of such news stories in at least one sense good news, because it means that the government is seeking to alter the incentive structure that leads cops to work for criminals. But testing the police force and firing the offenders is just one part of the equation; I wonder what local governments have done to improve the caliber of recruits and to protect those cops who work with criminals because they worry they will get killed if they don't.