I’m sure all the criminals fill one out.
check this out:

By the end of the year, Colorado will have conducted more background checks on firearms purchases than ever before, thanks to a new law that went into effect in July mandating them for every gun transfer. But whether that has made the public safer is still hotly debated.

“Dozens of criminals would be walking around with a gun right now if not for the new law,” said Rep. Rhonda Fields, in a news release reported by the Daily Camera. “Our intention was to make our communities safer and make it harder for criminals to get guns. We now have five months of data that prove that the law is working.”

Others consider the law to be effective only at adding barriers to law-abiding gun owners.