No officer in the lawful exercise or discharge of his official duty under any act of the Legislature, or any order or proclamation of the Governor of this state, shall be held personally responsible therefor in any action, suit, prosecution or proceeding, civil or criminal, by reason of such act, order or proclamation being afterwards adjudged by any court of this state to be unconstitutional. Nor shall his official bond be liable in any civil proceeding therefor.
West Virginia Legal Code