10 ILCS 5/7-54
After the votes of a political party have been counted and set down and the tally sheets footed and the entry made in the primary poll books or return, as above provided, all the primary ballots of said political party, except those marked "defective" or "objected to" shall be securely bound, lengthwise and in width, with a soft cord having a minimum tensile strength of 60 pounds separately for each political party in the order in which said primary ballots have been read, and shall thereupon be carefully sealed in an envelope, which envelope shall be endorsed as follows:
"Primary ballots of the.... party of the.... precinct of the county of.... and State of Illinois."
Below each endorsement, each primary judge shall write his name.
Immediately thereafter the judges shall designate one of their number to go to the nearest telephone and report to the office of the county clerk or board of election commissioners (as the case may be) the results of such primary. Such clerk or board shall keep his or its office open after the close of the polls until he or it has received from each precinct under his or its jurisdiction the report above provided for. Immediately upon receiving such report such clerk or board shall cause the same to be posted in a public place in his or its office for inspection by the public. Immediately after making such report such judge shall return to the polling place.
Where voting machines or electronic voting systems are used, the provisions of this section may be modified as required or authorized by Article 24 or Article 24A, whichever is applicable.
10 ILCS 5/7-54