10 ILCS 5/23-1.6a
If a petitioner in any election contest desires to examine records and equipment under the control of an election authority, he or she shall file with the Clerk of the Supreme Court a Request for Record Examination within 30 days of the date of the filing of the Petition and shall serve copies thereof on all parties to the contest and upon all election authorities having jurisdiction over the precincts in which votes were cast in the contested election. Within 5 days of receipt of such a Request, or between the 31st and 36th day after a petition is filed if no such Request is received, any other party to the election contest may file with the Clerk of the Supreme Court a request for Record Examination indicating the records and equipment not previously requested by the petitioner which such party desires to examine, serving a copy thereof upon all parties to the contest and upon all election authorities having jurisdiction over the precincts in which votes were cast in the contested election. Any party who fails to timely file a Request for Record Examination shall thereafter be barred from filing such a Request. A Request for Record Examination shall clearly set forth by precincts the records and equipment which the person filing the Request desires to examine and shall not be altered or amended after filing. Each Request for Record Examination shall be accompanied by a bond, with adequate surety, in an amount equal to $50 per precinct listed, or $75,000, whichever is less, to secure the payment by the party submitting the Request, of any assessment of the costs of the examination ordered by the Supreme Court.
10 ILCS 5/23-1.6a