South Dakota Attorney General Mark Vargo has named Chad Mosteller as the interim Director of the Division of Criminal Investigation (DCI) effective immediately. Mosteller has been serving as the DCI Assistant Director, Administrative Operations since December 2021. Mosteller worked as a college intern at DCI in the late 1990s and has been with DCI full-time since August 2002 serving in such positions as a special agent, supervisory agent, and Administrator of Law Enforcement Training. Vargo, who was appointed as Attorney General by Governor Kristi Noem in late June, spent last week traveling statewide to meet with DCI agents. Mosteller will serve as interim DCI director through Vargo’s tenure as Attorney General, which ends Jan. 6, 2023.