It is unlawful to conduct, carry on, operate, deal or allow to be conducted, carried on, operated or dealt any cheating or thieving game or device, or to deal, conduct, carry on, operate or expose for play any game or games played with cards, dice or any mechanical device, or any combination of the same, which may have in any manner been marked or tampered with, or equipped with electrical or other device whatsoever which might render the game more liable to win or lose. The use of marked cards, loaded dice, plugged or tampered with machines or devices is expressly made unlawful. (CH Ord. 6 § 5, 1946)