(a) No employee of this City who has in his possession any public money or any money paid to or deposited with any board, department or office of this City, shall pay out, deliver or relinquish any such money in exchange for any check or bill of exchange or any draft upon any bank or depositary or person or firm or corporation for the payment of money, nor shall such employee in anywise dispose of or pay out such money except as provided by law.
(b) This section shall not apply to any act, conduct or omission mentioned in Sections 424, 425, 484 or 504 of the Penal Code of California or to any act mentioned in Section 17 of Article XI of the Constitution of the State of California.
(c) Nothing in this section shall be construed to approve by implication any act not specifically prohibited therein.