Prosecuting officer shall not accept fees or rewards, nor act in a civil case as counsel for either party

S.C. Code Ann. § 17-1-20, under Title 17, Chapter 1.

S.C. Code Ann. § 17-1-20

No prosecuting officer shall receive any fee or reward from or in behalf of a prosecutor for services in any prosecution or business to which it is his official business to attend, nor be concerned as counsel or attorney for either party in a civil action depending upon the same state of facts.