US City, State & Federal Dog Laws
California Food and Agricultural Code
Division 14. Regulation and Licensing of Dogs
Chapter 5. Killing and Seizure - Article 2. Optional Provisions - Sections 31151-31153
31151. The provisions of Sections 31102 and 31103 shall not apply in any area of a county in which the board of supervisors has provided, by resolution, that the provisions of this article apply. 31152. Any person may kill any dog in any area of a county in which the provisions of this article apply in any of the following cases: (a) The dog is found in the act of killing, wounding, or persistently pursuing livestock or poultry on land or premises not owned or possessed by the owner of the dog. (b) The dog has no readily visible identification tag or license tag prescribed by Section 30951 and is worrying livestock or poultry on land or premises not owned or possessed by the owner of the dog. If the dog has on him any readily visible identification tag or license tag prescribed by Section 30951, and the dog is found in the act of worrying livestock or poultry on land or premises not owned or possessed by the owner of the dog, the dog may only be killed if the dog has, and the owner has been notified that the dog has, previously so worried livestock or poultry. (c) The person has such proof as conclusively shows that the dog has been recently engaged in killing or wounding livestock or poultry on land or premises not owned or possessed by the dog's owner. No action, civil or criminal, shall be maintained for killing a dog as authorized by this section. 31153. Any dog entering any enclosed or unenclosed property upon which livestock or poultry are confined may be seized by the owner or tenant of the property or any employee of the owner or tenant. No action, civil or criminal, shall be maintained against the owner, tenant, or employee for the seizure of any such dog.