S.C. Code § 42-3-150
The commission in the discharge of its duties may administer oaths and affirmations, take depositions and issue subpoenas to compel the attendance of witnesses and the production of books, papers, correspondence, memoranda and other records deemed necessary in connection with any proceeding under this title.
No person shall be excused from attending and testifying or from producing books, papers, correspondence, memoranda or other records before the commission on the ground that the testimony or evidence, documentary or otherwise, required of him may tend to incriminate him or subject him to a penalty or forfeiture. But no individual shall be prosecuted or subjected to any penalty or forfeiture for or on account of any transaction, matter or thing concerning which he is compelled, after having claimed his privilege against self-incrimination, to testify or produce evidence, documentary or otherwise, except that such individual so testifying shall not be exempt from prosecution and punishment for perjury committed in so testifying or from civil prosecution, penalties or forfeitures pursuant to the provisions of this title.
In case of contumacy by any person or refusal to obey a subpoena issued to any person, the commission may issue to such person an order requiring him to appear before the commission to produce evidence if so ordered or to give testimony touching the matter under investigation. Any failure to obey an order of the commission may be punished as a contempt thereof.
Any person who shall without just cause fail or refuse to attend and testify, to answer any lawful inquiry or to produce books, papers, correspondence, memoranda and other records, if it is in his power to do so in accordance with a subpoena of the commission, shall be deemed guilty of a misdemeanor and upon conviction shall be punished by a fine of not less than twenty nor more than two hundred dollars or by a term of imprisonment for not more than thirty days. Each failure to obey a subpoena shall constitute a separate offense. Subpoenas shall be issued in the name of the commission and shall be signed by a commissioner. Subpoenas shall be issued to such persons as the commission may designate.
In addition, the commission may punish for contempt in the manner authorized by this section any person whose disorderly conduct in any commission proceeding interferes with the orderly process of such proceeding.
S.C. Code § 42-3-150