W. Va. Code § 61-6-2

If any person be arrested for a riot, rout or unlawful assemblage, he shall be taken without unreasonable delay before a justice of the county in which the arrest is made who shall commit him to jail, unless he shall enter into a recognizance, with sufficient security, to appear before the court having jurisdiction of the offense, at its next term, to answer therefor, and in the meantime to be of good behavior and to keep the peace.