S.C. Code Ann. § 14-17-350

The clerk shall administer the oaths of office required by law to be taken by a constable, on his entering into bond, as prescribed, to be filed in the office of the clerk, of the sufficiency of the surety to which the clerk shall judge. The constable shall furnish a genuine signature of his name in the book prescribed, whereupon the clerk shall furnish an official certificate of such qualification. When any constable summoned in writing by the sheriff to attend court shall fail to appear, according to the summons, such default shall be noted by the clerk and such other proceedings had as in cases of jurors in default or as the court may order.