S.C. Code Ann. § 39-3-310

Whenever complaint has been made to the Attorney General or he has reason to believe that the provisions of Articles 1 or 3 of this chapter relating to and regulating trusts and combinations or unlawful and unfair discrimination to destroy a competitor's business have been violated, the Attorney General, in addition to the authority otherwise conferred upon him by law, may investigate such alleged violation of law and in making such investigation he may summon and require the attendance of witnesses at such time and place as he may designate in the same manner as witnesses are required to appear and testify in the trial of cases in courts of this State.