The lie-detector team brought in by Mexico's top cop was supposed to help clean up the country's long-troubled police. There was just one problem: Most of its members themselves didn't pass, and a supervisor was rigging results to make sure others did.
When public safety chief Genaro Garcia Luna found out, he canned the team, all 50 to 60 members.
"He fired everybody," a senior U.S. law enforcement official said.
But the episode shows how difficult it will be for Mexico to reverse a legacy of police corruption that has tainted whole departments, shattered people's faith in law enforcement and compromised one of society's most basic institutions.
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