§ 1-1-9 ALTERING CODE.
   It is unlawful for any unauthorized person to change or amend by additions or deletions, any part or portion of the code of ordinances, or to insert or delete pages, or portions thereof, or to alter or tamper with the code of ordinances in any manner whatsoever which will cause the law of the city to be misrepresented thereby.
(Iowa Code § 718.5)