Va. Code Ann. § 53.1-137

The Board is authorized to hold and conduct revocation hearings; to issue subpoenas requiring the attendance of witnesses and the production of records, memoranda, papers and other documents before the Board or any representative of the Board; and to administer oaths and take testimony thereunder. The Board may authorize any member or other authorized representative of the Board to hold and conduct hearings, issue subpoenas, and administer oaths and take testimony thereunder. If any person fails or refuses to obey any such subpoena issued by the Board or any member or other authorized representative thereof, or hinders the orderly conduct and decorum of any hearing held and conducted by the Board or any member or other authorized representative thereof, he shall be guilty of a Class 1 misdemeanor.