CHICAGO (WLS) -- A judge says DNA from the gun of Chicago Police Commander Glenn Evans can be used as evidence his trial.
Evans is accused of shoving the weapon into a suspect's throat in January 2013.
The judge denied a request from the police officer's lawyers to suppress the swab.
Evans has pleaded not guilty to battery and misconduct charges.
DNA from Cmdr. Glenn Evans' gun admissible in trial, judge rules