In conducting the recount, the director shall review all ballots, whether the ballots were counted at the precinct or by computer or by the district absentee counting board or the questioned ballot counting board, to determine which ballots, or part of ballots, were properly marked and which ballots are to be counted in the recount, and shall check the accuracy of the original count, the precinct certificate, and the review. The director shall count absentee ballots received before the completion of the recount. For administrative purposes, the director may join and include two or more applications in a single review and count of votes. The rules in Alaska Stat. § 15.15.360 governing the counting of ballots shall be followed in the recount when a ballot is challenged on the basis of a question regarding the voter‘s intent to vote for the candidate, proposition, or question. The ballots and other election material must remain in the custody of the director during the recount, and the highest degree of care shall be exercised to protect the ballots against alteration or mutilation. The recount shall be completed within 10 days. The director may employ additional personnel necessary to assist in the recount.