(a) A person commits an offense if the person knowingly violates this chapter.
(b) An offense under this section is a Class B misdemeanor, except that if it is shown on trial of the offense that the defendant has been convicted previously under this section, the offense is a Class A misdemeanor.
(c) A corporation or association may be held criminally responsible for the conduct of a person acting on its behalf if the person’s conduct constitutes an offense under this section.
(d) It is a defense to prosecution under this section that:
(1) the defendant is a veterans organization;
(2) the person whose conduct constitutes the offense was acting on behalf of a corporation or association with which the veterans organization had contracted for services; and
(3) the person committed the conduct without the knowledge of the veterans organization.