S.C. Code Ann. § 25-1-3085

The following members of the military forces may administer oaths for the purpose of military administration, including military justice, and affidavits may be taken for those purposes before persons having the general powers of a notary public: (1) the state judge advocate; (2) all summary courts-martial; (3) all adjutants, assistant adjutants, acting adjutants, and personnel adjutants; (4) all judge advocates and legal officers, and acting or assistant judge advocates and legal officers; (5) the president, military judge, trial counsel, and assistant trial counsel for all general and special courts-martial; (6) the president and the counsel for the court of any court of inquiry; (7) all officers designated to take a deposition; (8) all persons detailed to conduct an investigation; (9) all officers; (10) all other persons designated by law or by regulations of the Governor. The signature without seal of any person, together with the title of his office, is prima facie evidence of his authority.