S.D. Codified Laws § 1-27-1.3

The provisions of §§ 1-27-1 to 1-27-1.15, inclusive, and 1-27-4 shall be liberally construed whenever any state, county, or political subdivision fiscal records, audit, warrant, voucher, invoice, purchase order, requisition, payroll, check, receipt, or other record of receipt, cash, or expenditure involving public funds is involved in order that the citizens of this state shall have the full right to know of and have full access to information on the public finances of the government and the public bodies and entities created to serve them. Use of funds as needed for criminal investigatory/confidential informant purposes is not subject to this section, but any budgetary information summarizing total sums used for such purposes is public. Records which, if disclosed, would impair present or pending contract awards or collective bargaining negotiations are exempt from disclosure.