Ill. Admin. Code tit. 95 § 400.1345
Any person subject totheCode who commits an offense not enumerated intheCode but that is an offense under the laws of the United States, Illinois, or another state, U.S. commonwealth, territory, possession, or district (i.e., the laws of the jurisdiction), while that person is subject to the jurisdiction oftheCode, is guilty of any act or omission that, although not made punishable by any enactment ofthis State, is punishable if committed or omitted within the jurisdiction of the laws of the jurisdiction. In accordance with Code Section 134, the offense may be charged as an offense under the substantive law of the jurisdiction where the offense was committed, in force at the time of the offense, and shall be punished pursuant to the law of that jurisdiction, subject only to the maximum punishment prescribed by Appendix A. (Code Section 149)
Ill. Admin. Code tit. 95, § 400.1345