It's been a requirement to run a person's FOID through the state police website when conducting a private gun sale. If you have a FOID the state police run a background check on you 300 days a year, not doing so on 5 holidays during the year. The only thing this new law will accomplish compared to what they were previously doing is to make law abiding citizens jump through more hoops. I'm pretty sure criminals are not going to stop buying guns on the street, as they've been doing all along.