S.C. Code Ann. § 44-31-160
If any person so committed to the State Park Health Center shall leave the health center without permission of the medical director, the director shall report that fact to the judge of probate of the county from which the patient was committed, and the judge of probate shall call upon the sheriff of the county to return the patient to the State Park Health Center or shall take any other lawful steps which he deems necessary to insure his return.