10 ILCS 5/24A-15.01

Upon completion of the tabulation and retabulation of votes pursuant to Sections 24A-11 through 24A-15, the ballots from each precinct shall be replaced in the container in which they were transported to the central counting station. If such container is not a type which may be securely locked, then each such container - before being transferred from the counting station to storage - shall be sealed with filament tape wrapped around such container lengthwise and crosswise, at least twice each way, and in such manner that the ballots cannot be removed from the container without breaking the tape.