SDCL § 2-9-6: Investigative powers of board.

In the discharge of any duty herein imposed, the executive board or its duly appointed committees shall have authority to administer oaths, require reports, issue subpoenas, compel the attendance of witnesses, and the production of any papers, books, accounts, documents, and testimony, and to cause the depositions of witnesses, either residing within or without the state, to be taken in the manner prescribed by law for taking depositions in civil actions in the circuit court.