S.C. Code Regs. § § 19-775.10
The Committee Chairman or his designee is authorized to issue subpoenas for files, records, and papers deemed pertinent to any investigation, and to subpoena witnesses at the request of either party. All subpoenas to be issued relating to the hearing will be issued by the Grievance Committee. In the event that either party in a case has difficulty in obtaining a witness's agreement to testify or to produce files, records and papers, such party must request in writing the issuance of a subpoena at least ten (10) days before the date of the hearing. The request for a subpoena must include the name of the witness and/or a description sufficiently specific to identify the documents in question. The request shall be forwarded to the Office of Human Resources. The Chairman of the State Employee Grievance Committee, for the Committee, issues the subpoena; however, the service of the subpoena is the responsibility of the requesting party. Subpoenaed documents shall be made available at least five (5) days before the date of the hearing to the requesting party. When any person fails to comply with a subpoena, the requesting party is responsible for pursuing any judicial enforcement of that subpoena. Any reasonable expenses incurred by a subpoenaed witness shall be paid by the requesting party.
S.C. Code Regs. § 19-775.10