S.C. Code Regs. § § 19-775.17
As presiding officer, the Committee Chairman or his designee shall conduct the grievance hearing in an equitable, orderly, and expeditious fashion. The Committee will give effect to rules of privilege recognized by law. Parties will abide by the Chairman's decisions, unless a Committee member(s) voices disagreement. If this occurs, the Chairman will call a short recess to consult with the Committee and with the Committee Attorney. After consultation, the majority vote of the Committee will determine such decisions except that if the matter involves a question of law or the order of testimony, the Committee Attorney shall make the final decision and ruling. The Committee Attorney shall determine the order and relevance of the testimony and the appearance of witnesses, and shall rule on all motions, and all legal issues. The parties shall be bound by the decisions of the Committee Chairman or Committee Attorney insofar as such hearings are concerned.
S.C. Code Regs. § 19-775.17