S.C. Code Ann. § 23-3-240

Any parent, spouse, guardian, legal custodian, public or private agency or entity, or any person responsible for a missing person, may submit a missing person report to the MPIC on any missing child or missing person, regardless of the circumstances, after having first submitted a missing person report on the individual to the law enforcement agency having jurisdiction of the area in which the individual became or is believed to have become missing, regardless of the circumstances.