10 ILCS 5/24B-5

In precincts where an electronic Precinct Tabulation Optical Scan Technology voting system is used, a sufficient number of voting booths shall be provided for the use of the systems according to the requirements determined by the State Board of Elections, and the booths shall be arranged in the same manner as provided for use with paper ballots. Each booth shall be placed so that the entrance to each booth faces a wall in a manner that no judge of election or pollwatcher is able to observe a voter casting a ballot.