10 ILCS 5/24-15
As soon as the polls are closed, the voting machine or machines shall be locked in order to prevent further voting and each machine shall be sealed against voting and tampering, with a numbered metal seal, and the number of such metal seal shall be recorded at once on the certificate provided for that purpose, and the number on the protective counter of each voting machine shall also be recorded on the certificate in the space provided for that purpose, and the number on the public counter shall be recorded in the space provided for that purpose. The counting compartment shall then be opened in the presence of all the precinct election officials and all watchers and other persons who may be lawfully within the room, giving full view of the numbers announcing the votes cast for each candidate, and the vote for and against each of the questions or other propositions. Provided, however, when a machine is equipped with a device which will automatically record the number on the registering columns for each candidate, question or proposition on the back of the machine to a paper recording sheet then the recording sheet shall be removed and the vote cast shall be announced from the recording sheet for each candidate and the vote for and against each question or proposition. When voting machines are used in an election precinct, the watchers provided by law to be present in the polling place on election day shall be permitted to make a record of the number on the metal seal with which each voting machine is sealed, and to also record the number shown on the protective counter of each voting machine, and such watchers shall also be permitted to examine the counters of the voting machines as the totals are being announced for transcription to the return sheets or from the recording sheets and also to examine the return sheets or the recording sheets as the totals are being recorded or checked thereon. In voting machine precincts where the voting machine is not equipped with the automatic recording sheet the officer, officers board or boards charged by law to furnish the ballot labels for the voting machines shall also furnish for each election precinct in which a voting machine is to be used, at least two duplicate return sheets which shall be used by the precinct election board of such election precinct for recording the results of the election. Such return sheets shall be printed in the form of a diagram exactly corresponding, in arrangement, with the face of the voting machine, and such return sheets shall also correspond, in as far as arrangement is concerned, with the sample ballots, and each return sheet shall provide printed instructions for the exact procedure which the precinct election board shall follow when making the canvass of the results of the election, and such return sheets shall also provide the office titles, party names, candidates' names and code letters and number, arranged in the same manner as on the ballot labels, and there shall be provided a space for inserting the serial number of each voting machine, so that the totals recorded from each voting machine may be identified as being from a certain voting machine, and there shall be provided a space for recording such separate total for each candidate and constitutional amendment, or other question or proposition, from each separate voting machine, and a space for recording the total of the vote by mail and early vote in the same manner, so that the final total for each candidate, constitutional amendment, question or other proposition, may be totaled by adding all the figures in a column. Totals on the return sheets shall be recorded in figures only, in ink. The same authorities shall also furnish to each such election precinct suitable printed forms for use by the precinct election board, in making out the certificates provided for in this Article. Such certificates shall be made a part of the return sheets if practicable, or may be on separate sheets.
10 ILCS 5/24-15