The members of the Board of Parole shall have terms of office of six years and until their successors are appointed. The successors shall be appointed in the same manner as provided for the members first appointed, and a vacancy occurring before expiration of a term of office shall be similarly filled for the unexpired term. A member of the board may be reappointed. The members of the board may be removed only for disability, neglect of duty, or malfeasance in office by the Board of Pardons after a hearing. The Board of Pardons shall promptly file in the office of the Secretary of State a complete statement of the charges, its findings and disposition, and a complete record of the proceedings.