State Emergency Marshall Law
Among the powers Feinen gained after signing the executive order was the power to ban the sale of guns, ammunition, alcohol, and gasoline. Feinen could also cut off access to individuals' gas, water, or electricity. The city also has the ability to "take possession of private property" or order the temporary closing of all bars or liquor stores.
https://www.washingtonexaminer.com/news/illinois-mayor-signs-executive-order-granting-power-to-ban-sale-of-guns-and-alcohol-while-addressing-coronavirus