(Portland, OR) -- A former Multnomah County Sheriff's deputy faces criminal charges following a year-long investigation into misconduct allegations. The investigation into 43-year-old Devona Preble began after she was found with a wanted man. Detectives learned they were involved in a relationship that began while he was in jail and she worked as a corrections deputy. She's also accused of supplying drugs to the man while he was in custody. She was fired last year. Preble was arrested Tuesday.