W. Va. Code § 21A-10-6
A person shall not be excused from attending and testifying or producing books, papers, correspondence, memoranda, or other records before the commissioner or the board or in obedience to the subpoena of the board or the commissioner, or a duly authorized representative of the board or the commissioner, in any proceeding brought under this chapter on the ground that the testimony or evidence may tend to incriminate him, or subject him to a penalty or forfeiture. An individual shall not be prosecuted or subjected to penalty or forfeiture on account of testimony given, or evidence produced subject to such subpoena, if prior to giving such testimony or producing such evidence he has claimed his privilege against self-incrimination.
This section shall not exempt an individual from prosecution and punishment for perjury.
W. Va. Code § 21A-10-6