In Wisconsin where I live, the state assembly passed a bill that provides information on people who are mentally ill in order to keep them from buying a gun because the mental health information would be available when doing the background check. But here's a question: As far as those individuals who already own them, or buy them privately, would the police departments have that information if they came across a gun owner and wanted to determine if they could legally own it? They can already look up the person's criminal record to see if they're a felon, but would they also now be able to find out if they have a mental illness history?