W. Va. Code § 52-1-15

(a) Within seven days after the moving party discovers, or by the exercise of due diligence could have discovered, the grounds therefor, and in any event before the petit jury is sworn to try the case, a party may move to stay the proceedings, quash the indictment or move for other relief as may be appropriate under the circumstances or the nature of the case. The motion shall set forth the facts which support the party's contention that there has been a substantial failure to comply with this article in selecting the jury.

(b) Upon motion filed under subsection (a) of this section containing a sworn statement of facts which, if true, would constitute a substantial failure to comply with this article, the moving party is entitled to present, in support of the motion, the testimony of the clerk, any relevant records and papers not public or otherwise available used by the clerk, and any other relevant evidence. The clerk may identify the lists utilized in compiling the master list, but may not be required to divulge the contents of such lists. If the court determines that in selecting a jury there has been a substantial failure to comply with this article, the court shall stay the proceedings pending the selection of the jury in conformity with this article, quash an indictment or grant such other relief as the court may deem appropriate.

(c) In the absence of fraud, the procedures prescribed by this section are the exclusive means by which a person accused of a crime, the state or a party in a civil case, may challenge a jury on the ground that the jury was not selected in conformity with this article.