(WGN-TV ) Cook County’s special gun tax, aimed at curbing taxpayer expenses tied to gun violence, kicks in Monday despite a lawsuit by firearms stores and owners to shut it down.

Championed by County Board President Toni Preckwinkle and approved by county commissioners as part of the larger 2013 county budget, the new $25 tax on each gun sale in suburban Cook County goes into effect as a larger national debate on gun control takes center stage.

In proposing the tax, Preckwinkle said she was looking for a way to defray the costs of gun violence on county taxpayers — whether it’s in the public health system where the injured are treated or the local criminal justice system.

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