Section 31105 Of Article 1. Generally From California Food And Agricultural Code >> Division 14. >> Chapter 5. >> Article 1.

. The board of supervisors shall provide for both of the following:
  (a) The taking up and impounding of all dogs which are found running at large in violation of any provision of this division.
  (b) The killing in some humane manner or other disposition of any dog which is impounded.