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this post was submitted on 19 Jul 2025
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3DPrinting
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The reality is that the markings left on bullets aren't as unique as NCIS would have you believe. A lot of them DO change over time (or even just field stripping a gun).
But the key is that in those first N hours/days, it can be some very substantial evidence. 9 mm round was left embedded in the politician and the chief suspect has ten 9 mm PCCs? Let's test all ten of those and see if we get a match. And so forth.
In that case: Assuming this holds true (I read the article a few days ago and it is currently very hazy), the same could be done with 3d printers. Ghost gun used in a case and the suspect has a 3d printer? Well... checking the print logs is probably still easier. But one could imagine a world where there is a court order to print a special benchy to compare tooling marks.
And... much like with guns, someone who is educated can take precautions.