The Jefferson Police Department has requested warrants for 18-year-old Dylan Scott Davis of Grand Junction after receiving lab results back from the Iowa Department of Criminal Investigation (DCI) laboratory. A substance now confirmed to be marijuana, was seized during a traffic stop in the 600 block of East Lincolnway Street on May 7. Davis is now facing charges of possession of a controlled substance—marijuana, first offense, a serious misdemeanor, interference with official acts and possession of drug paraphernalia, both simple misdemeanors.