ARLINGTON, Texas (CBSDFW.COM) – When an Arlington Police officer pulled a young man over for a traffic violation Monday night, the officer discovered much more going on.

Arlington Police Chief Will Johnson tweeted about the incident that led to the recovery of marijuana, Xanax, $400 in case and a 9mm handgun with a 30-round magazine.

Police arrested Brian Williams, 21.

williams Traffic Stop Leads To Drug, Weapons Bust In Arlington

Brian Williams arrested for drugs and weapons violations in Arlington