11-31-107. Running livestock; when killing authorized; liability to owner; exception. Dogs running livestock against the wish of the owner of the livestock may be killed at once in cases where the livestock has been injured or is threatened with injury. The person killing any dog running livestock is not liable to the owner where the vicious character of the dog or the damage or danger of damage is shown. When livestock is trespassing upon property the property owner may use dogs to drive and keep off livestock from the property.
Wyoming Legal Code