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Tools are often used during a crime - a crowbar may be used to prise open a window, for example, and just like a fingerprint can frame a crook – toolmarks left behind in paint, putty, plaster or wood can be equally incriminating.
Tools have distinguishing features – not just their physical design, but also the material they’re manufactured with. The actual striation marks within the metal a tool is forged from can be compared, matched, and used as leverage to bring about an arrest.
Slide marks and cutting marks made by tools on other materials can also reveal a wealth of information under a comparison microscope.
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