This link seems to support my guess:
The court ruled today against Thomas Pocian, who, in 1986, was convicted of felony forgery. Subsequently, in 2008, Pocian shot two deer with a rifle borrowed from his father. After reporting the deer to the DNR, he was charged with being a felon in possession of a firearm in violation of Wisconsin Statute § 941.29.
In evaluating the overbreadth challenge, the court started with the general proposition from District of Columbia v. Heller, 554 U.S. 570 (2008), that state laws prohibiting “possession of firearms by felons” are presumptively lawful.
So it sounds like that sort of determination is left up to the state.
edit on 27-12-2012 by forgetmenot because: much needed emphasis added