W. Va. Code § 14-2-15

The commission shall adopt and may from time to time amend rules of procedure, in accordance with the provisions of this article, governing proceedings before the commission. Rules shall be designed to assure a simple, expeditious and inexpensive consideration of claims. Rules shall permit a claimant to appear in his or her own behalf or be represented by counsel.

Discovery may be used in a case pending before the commission in the same manner that discovery is conducted pursuant to the Rules of Civil Procedure for trial courts of record, Rules 26 through 36. The commission may compel discovery and impose sanctions for a failure to make discovery, in the same manner as a court is authorized to do under the provisions of Rule 37 of the Rules of Civil Procedure for trial courts of record: Provided, That the commission shall not find a person in contempt for failure to comply with an order compelling discovery.

The commission, upon its own motion or upon motion of a party, may strike a pleading, motion or other paper which: (1) Is not well-grounded in fact; (2) is not warranted by existing law, or is not based on a good faith argument for the extension, modification, or reversal of existing law; or (3) is interposed for any improper purpose, such as to harass or to cause unnecessary delay or needless increase in costs. An order striking a pleading, motion, or paper may include an order to pay to the other party or parties the amount of the reasonable expenses incurred because of the filing of the pleading, motion, or other paper, including a reasonable attorney’s fee.

Under its rules, the commission shall not be bound by the usual common law or statutory rules of evidence. The commission may accept and weigh, in accordance with its evidential value, any information that will assist the commission in determining the factual basis of a claim.