235 ILCS 5/9-2a
Any vote under this Article, whenever held, to prohibit sales at retail of alcoholic liquor (or alcoholic liquor other than liquor containing not more than 4% of alcohol by weight) in a precinct in a city, village or incorporated town of more than 200,000 inhabitants shall not apply to such sales at any new sports facility owned by any unit of local government and constructed after July 7, 1988, or at any new stadium described in subsection (a) of Section 10-215 of the Property Tax Code, or to a sports stadium having more than 15,000 but less than 50,000 seats in any municipality having more than 2,000,000 inhabitants, and such sales shall not be prohibited pursuant to any vote of the legal voters in such a precinct. It is declared to be the law of this State, pursuant to subsections (h) and (i) of Section 6 of Article VII of the Illinois Constitution of 1970 that the power to determine the application of any local referendum with respect to sales of alcoholic liquors as provided herein is an exercise of exclusive State power and may not be exercised concurrently by any unit of local government, including home rule units.
235 ILCS 5/9-2a