No claim against the City shall be paid except by means of a warrant on the Treasury issued by the City Auditor, who shall issue no such warrant unless the claim be evidenced by a voucher approved by the head of the department or office for which the indebtedness was incurred, and countersigned by the City Manager; and each such officer and his surety shall be liable to the City for all loss or damage sustained by reason of his negligent or corrupt approval of any claim.
(Amended 11-8-11)