S.C. Code Ann. § 22-2-90

(A) In addition to the procedure for drawing a jury list as provided for in Section 22-2-80, in a magistrates court which schedules terms for jury trials, the magistrate may select a jury list in the manner provided by this section. (B) At least ten but not more than forty-five days before a scheduled term of jury trials, a person selected by the presiding magistrate must draw at least forty but not more than one hundred jurors to serve one week only. (C) If a court has experienced difficulty in drawing a sufficient number of jurors from the qualified electors of the area, and, before implementing a process pursuant to this subsection, seeks and receives the approval of South Carolina Court Administration, the person selected by the presiding magistrate may draw at least one hundred names but not more than a number determined sufficient by court administration to serve one week only. (D) Immediately after the jurors are drawn, the magistrate must issue a writ of venire facias for the jurors requiring their attendance on the first day of the week for which they have been drawn. This writ must be delivered to the magistrate's constable or the sheriff of the county concerned.