A 38-year-old Woodstock woman is facing drug charges after a bust by city police. The Drug Enforcement Unit made the arrest today, during an investigation into the trafficking of prescription narcotics. 38-year-old Shelly Vaters was arrested and charged with drug possession, trafficking and possession of property obtained by crime. $1300 worth of Oxycodone and cash were seized. Police say they're still looking to arrest an additional person in the investigation.