New Nanotechnology Tagging System to Help Solve Gun Crime

Criminals who use firearms may find it much harder to evade justice in future, thanks to an ingenious new bullet tagging technology developed in the UK. The tiny tags — just 30 microns in diameter and invisible to the naked eye — are designed to be coated onto gun cartridges. They then attach themselves to the hands or gloves of anyone handling the cartridge and are very difficult to wash off completely. Crucially, some of these nanotags also remain on the cartridge even after it has been fired. This should make it possible to establish a robust forensic link between a cartridge fired during a crime and whoever handled it

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