Once counting of votes is completed, the presiding election board shall place all the used ballots in a sealed package and preserve them. Valid ballots shall be kept separate from invalid ballots.
Once the deadline for submitting complaints has passed, or a final ruling on the elections issued, if complaints have been submitted concerning the elections, the presiding election board shall destroy the sealed ballots and enter a declaration to this effect in the record book
of the election board.
The same shall apply to the collection and preservation of registers of electors.