A key piece of Port Arthur-era gun reform remains unfinished. Could it have helped prevent the Bondi attack?

National register would have allowed police to better assess risk posed by alleged Bondi shooters before attack, expert says

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A national firearms register, which would track weapons across the country in real time, was a priority for law enforcement and gun control advocates after the 1996 Port Athur massacre.

But almost 30 years later, it remains unfinished.