§ 30.03 CONFLICT OF INTEREST.
   It shall be unlawful for any officer or employee of the city directly or indirectly to become a contractor for work done for the city, or to become directly personally interested in or receive profit from any purchase of supplies for the city; and any such person so offending shall be guilty of an offense and his office shall, upon conviction, be vacant.
('69 Code, § 2-3)