(1) Whenever the members of the hearing board conducting any hearing deem it necessary to examine any person as a witness at such hearing, the chairman of the hearing board shall issue a subpoena, in proper form, commanding such person to appear before it at a time and place specified to be examined as a witness. The subpoena may require such person to produce all books, papers, and documents in his possession or under his control material to such hearing.
(2) A subpoena to appear before the hearing board shall be served in the same manner as a subpoena in a civil action.