Cal. Food & Agric. Code § 30653

Each such claim for damages is governed by Part 3 (commencing with Section 900) and Part 4 (commencing with Section 940), Division 3.6, Title 1 of the Government Code, except that the claim, as presented, shall be accompanied by the affidavits of two disinterested witnesses executed within four days after the finding of the carcass of the animal.