Wyo. Stat. § 11-29-109
Any peace officer, agent or officer of the board may take charge of any livestock animal found abandoned, neglected or treated with cruelty in violation of W.S. 6-3-1002 or this chapter. He shall give notice to the owner, if known, and may care and provide for the livestock animal until the livestock animal is disposed of. The reasonable costs of impoundment are a charge against the owner of the livestock animal and collectible from the owner by the board or by the local government employing the peace officer taking charge of the livestock animal in a civil action. The board or local government may detain the livestock animals until the reasonable costs of impoundment are paid and shall have a lien upon the livestock animals therefor. This lien shall be filed as provided pursuant to W.S. 29-7-101 through 29-7-106.
W.S. 11-29-109