S.C. Code Ann. § 16-11-670

In all criminal prosecutions for violation of the provisions of Sections 16-11-650 and 16-11-660 the defendant may plead, as a matter of defense, the full satisfaction of all reasonable demands of the person aggrieved by such violation, and upon such plea being legally established and upon payment of all costs accrued up to the time of such plea he shall be discharged from further penalty.