Police Minister Judith Collins says the Government is looking seriously at legislation to restrict the sale of high-powered air rifles which are being blamed for two recent slayings in Auckland.

Police Sergeant Don Wilkinson died after he was shot with a FX Monsoon air gun while on a undercover drugs operation in 2008.

And now it has been revealed the same type of weapon was used in the slaying of Keith Kahi, 44, in the eastern Auckland suburb of Botany Downs nine days ago.

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