The following electoral boards are designated for the purpose of hearing and passing upon the objector's petition described in Section 10-8.
For special districts situated in more than one county, the county officers electoral board of the county in which the principal office of the district is located has jurisdiction to hear and pass upon objections. For purposes of this Section, "special districts" means all political subdivisions other than counties, municipalities, townships and school and community college districts.
In the event that any member of the appropriate board is a candidate for the office with relation to which the objector's petition is filed, he shall not be eligible to serve on that board and shall not act as a member of the board and his place shall be filled as follows:
In the event that the chair of the electoral board is ineligible to act because of the fact that he or she is a candidate for the office with relation to which the objector's petition is filed, then the substitute chosen under the provisions of this Section shall be the chair; In this case, the officer or board with whom the objector's petition is filed, shall transmit the certificate of nomination or nomination papers as the case may be, and the objector's petition to the substitute chair of the electoral board.
When 2 or more eligible individuals, by reason of their terms of service on a city council or board of trustees, township board of trustees, or community college district board, qualify to serve on an electoral board, the one to serve shall be chosen by lot.
Any vacancies on an electoral board not otherwise filled pursuant to this Section shall be filled by public members appointed by the Chief Judge of the Circuit Court for the county wherein the electoral board hearing is being held upon notification to the Chief Judge of such vacancies. The Chief Judge shall be so notified by a member of the electoral board or the officer or board with whom the objector's petition was filed. In the event that none of the individuals designated by this Section to serve on the electoral board are eligible, the chair of an electoral board shall be designated by the Chief Judge.
10 ILCS 5/10-9