Va. Code Ann. § 19.2-22

A person arrested without a warrant by any conservator of the peace or other law-enforcement officer for any of the acts set forth in § 19.2-19 committed in the presence of such conservator of the peace or law-enforcement officer, shall be brought forthwith before a magistrate or judge, and proceedings shall be had in accordance with §§ 19.2-20 and 19.2-21.