Idaho Code § 18-4616
Every person who cuts out, alters, mutilates, changes, disfigures, or defaces any legally recorded mark or marks made upon any log, lumber, or wood, or re-marks or puts a false mark thereon with intent to prevent the owner from discovering its identity, or places any mark upon, or cuts, saws, manufactures, or in any manner appropriates to his own use, or to the use of any other person, any prize log or timber, is guilty of a misdemeanor and punishable by a fine not exceeding one thousand dollars ($1,000), or imprisonment in the county jail not exceeding six (6) months, or by both such fine and imprisonment. In any prosecution for a violation of the provisions of this section relating to prize logs it shall be sufficient to prove that such logs are prize logs without further proof of ownership.
Idaho Code § 18-4616