"Cook County prosecutors had been investigating the allegation that [Cmdr. Glenn Evans] placed the barrel of his service weapon into a 24-year-old man’s mouth while arresting him," reports the Chicago Tribune.
"DNA from the man was found on the barrel of Evans’ gun, according to a State Police lab report."
Charges against the detained man were dropped a few months later.
Cmdr. Evans, charged with misconduct in this case, "Had 14 complaints between 2001 and 2006 and faced no discipline for any of them."