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  "path": "/feature-post/technology-articles/tracing-3d-printed-ghost-gun-filaments/",
  "publishedAt": "2026-03-04T17:24:37.000Z",
  "site": "https://www.zmescience.com",
  "tags": [
    "Future",
    "News",
    "Technology",
    "3d printing",
    "Chemistry",
    "forensics",
    "ghost guns",
    "law enforcement",
    "Polymers",
    "public safety",
    "spectroscopy"
  ],
  "textContent": "They’re called \"ghost guns\" because they’re supposed to be untraceable. They're not.",
  "title": "3D‑printed ‘ghost guns’ are not as untraceable as criminals think: each printer leaves a unique chemical signature"
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