Illinois prohibition on carrying firearms outside the home was struck down by the Illinois State Supreme Court in 9-0 decision People v. Aguilar.
As far as we know, this is the first time a state supreme court in the United States has ruled the right to keep and bear arms applies outside the four corners of a residence.
“The constitutional right of armed self-defense is broader than the right to have a gun in one’s home.”
"The need for self-defense is most acute in the home, that doesn't mean it is not acute outside the home."
"The second amendment guarantees not only the right to “keep” arms, but also the right to “bear” arms, and that these rights are not the same: “The right to ‘bear’ as distinct from the right to ‘keep’ arms is unlikely to refer to the home. To speak of ‘bearing’ arms within one’s home would at all times have been an awkward usage. A right to bear arms thus implies a right to carry a loaded gun outside the home."
“The right to have arms was by the time of the founding understood to be an individual right protecting against both public and private violence.”