The Mexican government’s human rights body has accused police of killing twenty two people in extrajudicial executions in a raid on a drug cartel last year.
One police officer and forty two suspects were killed in the raid on a ranch in Tanhuato, Michoacan state, on May 15.
Officers said they had returned fire in self-defence but the high death toll aroused suspicions.
The National Human Rights Commission says police attempted a cover-up. Police dispute the findings.