Rule 8 - Expansion of Record(a) Direction for expansion. - If the petition is not summarily dismissed, the court may direct that the record be expanded by the parties by the inclusion of additional materials relevant to the determination of the merits of the petition.(b) Materials to be added. - The expanded record may include, without limitation, letters predating the filing of the petition in the court, documents, exhibits, and answers under oath, if so directed, to written interrogatories propounded by the court. Affidavits may be submitted and considered as part of the record.(c) Submission to opposing party. - In any case in which an expanded record is directed, copies of the letters, documents, exhibits, and affidavits proposed to be included shall be submitted to the other party against whom they are to be offered, and he or she shall be afforded an opportunity to admit or deny their correctness.(d) Authentication. - The court may require the authentication of any material under subdivision (b) or (c).W. Va. R. Gov. Post-Conv. Hab. Co. Proc. 8