Under the agreements worked out by Schneiderman, all firearms are tagged at the entrances to gun shows. Operators must provide computer stations for sellers to do national background checks.
As they are taken away through a limited number of exits, guns are checked to make sure background checks were performed. No buyers can leave a show without documentation of a proper sale.
Schneiderman, who has worked with all 35 gun show operators in New York, showed the couple how the process worked.
"It's great to see government and licensed firearms dealers working together to solve a problem," Kelly said.
Giffords was shot in the head while meeting with constituents in Tucson. Six people died.
Though it was mostly smiles inside, about a dozen protesters rallied outside the gun show holding signs critical of New York's new law that expanded a ban on military-style weapons, among other things. The law was passed not long after the December school massacre at Sandy Hook Elementary School in Connecticut.
Kenneth Hall, who held a sign with a swastika that read in part "gun control made the Holocaust possible," said the New York background check was not needed.
"I believe this is a publicity stunt for Mark Kelly and Gabby Giffords," Hall said. "They say they're Second Amendment supporters. I don't believe they are."
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