Section 553.14 - Criminal penalties1. A person or a natural person having substantial control over an enterprise who knowingly and willfully engages in conduct prohibited by this chapter shall be guilty of a serious misdemeanor.2. A person having substantial control over an enterprise who knowingly and willfully engages in bid rigging or price fixing involving a contract with the state or a governmental agency is guilty of a class "D" felony.C97, §5062; S13, §5062, 5067-c, 5077-a5; C24, 27, 31, 35, 39, §9908, 9918, 9926; C46, 50, 54, 58, 62, 66, 71, 73, 75, § 553.3, 553.13, 553.21; C77, 79, 81, § 553.14 84 Acts, ch 1143, §1