Section 10 ILCS 5/17-3 - Ballot box procedure(a) Before voting begins, the ballot box shall be publicly opened and exhibited, and the judges shall see that no ballot is in such box; after which the box shall be locked and the key delivered to one of the judges, and shall not be again opened until the close of the polls. This paragraph (a) applies whenever permanent type ballot boxes are used, and does not apply when non-permanent type ballot boxes are used in accordance with section 15-1, paragraph (b).(b) When non-permanent type ballot boxes are used in accordance with section 15-1, paragraph (b), prior to the commencement of voting and before any ballots are deposited therein, the judges shall examine each sealed ballot box, show it to those present and insure that it is in fact sealed and empty; the sealed slot shall be broken open before those present and the box inspected to insure that it is empty and such ballot box shall not be removed from public view from the time it is so inspected until after the close of the polls. The sealed opening on the side of the box shall not be unsealed or opened until after the close of the polls.