10 ILCS 5/23-6.1
Whenever an election contest for a municipal trustee or alderperson is brought involving ballots from the same precincts which are subject to the jurisdiction of the circuit court by virtue of the pendency of an election contest for another office, the municipal council or board of trustees having jurisdiction of the municipal election contest shall have priority of access and possession of the ballots and other election materials for the purpose of conducting a recount or other related proceedings for a period of 30 days following the commencement of the municipal election contest. The election authority shall notify the court and the municipal council or board of the pendency of all other contests relating to the same precincts.
10 ILCS 5/23-6.1