Ala. Code § 17-12-7

When no federal elections are on the ballot, the sheriff shall keep the ballots six months in the voted ballot box, without opening or unsealing the voted ballot box, and thereafter destroy the ballots unless within six months the sheriff having them in custody is notified that the election of some officer for which the election was held will be contested, in which case the sheriff must preserve the box containing the ballots cast for such contestant until such contest is finally determined or until such box is demanded by some legally constituted custodian during such contest.