S.C. Code Ann. § 61-6-4220: Effect of conviction, plea, or bond forfeiture as prior offense.

A conviction, plea of guilty, plea of nolo contendere, or forfeiture of bond for a violation on or after March 28, 1956, of any state or federal law relating to alcoholic liquors constitutes a prior offense for the purpose of a prosecution, or for the purpose of imposition of sentence for a subsequent violation of this article, except Section 61-6-4720.