There has only been one thing proven to work and it cut the murder rate in Richmond Va by 60%
Project Exile, a pilot program first implemented in Richmond, Virginia, which prosecuted serious local gun crimes committed by felons under federal law, putting repeat offenders in federal prisons far away from their communities. This get-tough approach,which inspired President Bush's national initiative Project Safe Neighborhoods, ended up cutting the "gun carry" rate in half and reducing the murder rate in Richmond by more than 60%. The five-year mandatory sentence for committing a crime with an illegal gun changed criminal behavior. Similar initiatives have been implemented in cities throughout the country, but the coordination has been spotty and the Obama administration has failed to follow through on the model or add innovations to it.
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