Idaho Code § 25-2310

If in the judgment of a sheriff or brand inspector estray livestock is of no value or its value would be less than the cost of feed, care and sale of the livestock under this chapter, the sheriff or brand inspector may dispose of the livestock by private sale or by slaughter. If the owner of such livestock is known, he shall be personally notified of the proposed disposition of the livestock at least three (3) days before the livestock is privately sold or slaughtered. The owner may claim such livestock by paying the expenses incurred against it.