765 ILCS 1040/3
Every person who shall knowingly use a counterfeit mark or display a trade-mark, trade name, or service mark of which he or she is not the lawful owner in any manner not authorized by such owner, whether or not the unauthorized use creates a likelihood of confusion or misunderstanding, (a) in the sale of goods or services produced by the owner, but with alterations in packaging or labeling, or (b) in the sale of goods or services produced by the owner but in a packaging form not intended by him for such sale, or (c) in the packaging or labeling of goods or services not produced by the owner, if the trade-mark, trade name, or service mark of the owner is used for the purpose or with the effect of exploiting or impairing the owner's good will or as a means of representing a quality, property or characteristic of the goods or services being sold, other than the utility of the goods or services in the repair of or as a replacement of a component of the product of the owner and the trade-mark, trade name, or service mark is used in a non-misleading manner solely to indicate such utility, shall be deemed guilty of a Class A misdemeanor, or in the case of a counterfeit item shall be punished as provided in Section 8. In all cases where such owner is an incorporated association or union, suits under this Act may be commenced and prosecuted by any officer or member of such association or union on behalf of and for the use of such association or union.
765 ILCS 1040/3