Adams signed with the Bears during the offseason after spending four seasons with the Indianapolis Colts.
TMZ Sports is reporting that Adams, who is a linebacker for the Bears, was arrested for possession of a gun.
Chicago Bears LB Matthew Adams in custody after being arrested
Adams was reportedly questioned by the police on Thursday evening after he was spotted in the area of a stolen Jeep. He told the police that he had purchased the vehicle but after a search of the Jeep, the police found a loaded handgun and an extended mag of ammunition in the trunk.