Description
Forensic light sources (FLS) or Alternate Light Sources (ALS) are specialized tools—often handheld LED torches or high-power units—that use specific wavelengths (UV, blue, green, etc.) to reveal invisible evidence, such as bodily fluids, fingerprints, fibers, and stains, via fluorescence. These tools, often designed in collaboration with law enforcement, enhance crime scene investigation, allowing for faster detection of trace evidence.
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