W. Va. Code § 15-1E-36

Pretrial, trial, and post-trial procedures, including modes of proof, for courts-martial cases arising under this article, and for courts of inquiry, may be prescribed by the Governor or the Adjutant General by regulations, or as otherwise provided by law, which shall apply the principles of law and the rules of evidence generally recognized in military criminal cases in the courts of the Armed Forces but which may not be contrary to or inconsistent with this article.