||Dedrich (Deach) Koch, Attorney-at-Law
PO Box 186
Gann Valley, SD 57341
Phone: (605) 440-2212
The State's Attorney serves the citizens of our county and of South Dakota in the prosecution
of adult and juvenile crimes occurring in Buffalo County. The Office of the State’s Attorney is
committed to helping to preserve the quality of life and pursue justice for residents of Buffalo
While the principal responsibility of the office is the prosecution of adult and juvenile crime, the
office has the duty of protecting children who may be living in abusive or neglectful homes.
Additionally, the office is responsible for providing legal advice and representation to the Board
of Commissioners for the county and other elected and appointed department heads and staff.