S.C. Code § 31-3-520
Each authority created under this chapter and Chapter 11 may conduct examinations, subpoena witnesses and require the attendance of witnesses and the production of books and records and may issue commissions for the examination of witnesses who are out of the jurisdiction, unable to attend before the authority or excused from attendance. An authority may delegate the powers conferred on it by this section to a committee appointed by it, consisting of one or more members of the authority, or to its counsel or any officer or employee specifically authorized by it. Any member of the authority, its counsel or any person designated by it to conduct an investigation or examination may administer oaths, take affidavits and issue subpoenas or commissions.
S.C. Code § 31-3-520