Section 10 ILCS 5/7-40 - Ballot box procedure(a) Before voting begins, the ballot box shall be emptied and shall be opened and shown to those present to be empty, after which it shall be locked and the key delivered to one of the primary judges, and such ballot box shall not be removed from public view from the time it is shown to be empty until after the close of the polls. This paragraph (a) applies whenever permanent type ballot boxes are used, and does not apply when ballot boxes are used in accordance with paragraph (b) of this Section.(b) The election authority charged with providing ballot boxes for the conduct of an election under this Article may provide non-permanent type ballot boxes as authorized under Section 15-1, paragraph (b), and Section 15-4, paragraph (b). When such ballot boxes are used, prior to the commencement of voting and before any ballots are deposited therein, the judges shall examine each such 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.