235 ILCS 5/6-22

No person except a manufacturer or distributor, or importing distributor, shall fill or refill, in whole or in part, any original package of alcoholic liquor with the same or any other kind or quality of alcoholic liquor, and it shall be unlawful for any person to have in his possession for sale at retail any bottles, casks or other containers containing alcoholic liquor, except in original packages.