Arquero is now charged with unlawful use of a weapon by a felon. A simple fingerprint check would have revealed that he was a felon — albeit one known as Michael Trivasano — and disqualified him from owning a gun. But in Illinois, fingerprinting is not part of the background check required to get a firearm owners identification card or a concealed carry permit. Someone who wants a concealed carry permit has the option of supplying fingerprints to expedite the permit process.