Chief Deputy Mark Barnett
Barnett became an Assistant Attorney General in 1980, and then served as Hughes County State's Attorney. He was elected the Attorney General three times, from 1991 to 2003. Barnett eventually became a Circuit Judge in central South Dakota, where he served an additional 12 years. During his years as a prosecutor, Barnett successfully handled multiple high-profile homicides. He also argued and won two reversals in the United States Supreme Court.