Ala. Code § 17-8-4
Upon receiving the certificate provided for in Section 17-8-3, the remaining members of the appointing board shall forthwith and without delay appoint a qualified elector to take the place of each member of the appointing board who is a candidate for election, and shall cause the elector so appointed to be informed of his or her appointment. No person shall be appointed who is a candidate for any office to be voted for in that election. If the remaining members of the appointing board are unable to agree as to who should take the place of an appointing board member who is a candidate for election or if all members of the appointing board are unable to serve, the presiding circuit court judge shall make the appointment.
The person so appointed shall perform all the duties and be vested with all the powers of the regular members of the appointing board, and shall take an oath to faithfully perform his or her duties.
Ala. Code § 17-8-4 (1975)