SPRINGFIELD, Ill. — Gov. J.B. Pritzker authorized state regulation of firearms dealers Thursday in a reversal of his predecessor’s policy and prompting a gun owners group to threaten legal action against Illinois.

Pritzker, sworn in on Monday, chose an elementary school in Chicago to sign legislation meant to cut down on illegal purchases[1] of firearms through video monitoring, tighter inventory control and gun-shop employee training.

“We can prevent someone from buying a gun for someone else who is not legally allowed to own a gun,” said Pritzker, standing next to Chicago Police Superintendent Eddie Johnson, whose force confiscated 10,000 illegal guns last year. “Many of the incidents of gun violence that occur in our city and all across our state occur with illegal guns.”

The law affects about 2,400 firearms dealers and its provisions take effect in six months. Each must show it is licensed with the federal Bureau of Alcohol, Tobacco, Firearms and Explosives and purchase a five-year state permit — $1,500 for retail shops and $300 for independent dealers. Each must install videotaping in retail sections of the store, maintain an electronic inventory and require annual employee training in spotting so-called straw purchases.

The Illinois State Rifle Association promised a lawsuit challenging the plan.

“The federal government already licenses gun dealers. There is no need to add yet another layer of bureaucracy on gun dealers,” executive director Richard Pearson said in a statement. “The only thing this measure is going to do is make it cost more money for gun dealers to do business in Illinois, which is going to hurt the smaller dealers.

“The action taken today is another assault on our 2nd Amendment rights.”

Pritzker, who already this week reversed course on GOP Gov.

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