Tag: forensic light source
Alternate Light Sources: Finding Fingerprints with ALS in Forensic Investigations
- By : Ian Brophy
- Date : Feb 28 2026
Alternate Light Sources (ALS) reveal invisible fingerprints and trace evidence using specific wavelengths of light. Used in forensics, ALS finds prints on plastic, metal, and porous surfaces where powder fails - transforming how crime scenes are processed.
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chain of custody
forensic science
forensic toxicology
digital forensics
forensic pathology
forensic documentation
lab accreditation
crime scene investigation
bloodstain pattern analysis
criminal profiling
forensic ballistics
trace evidence
biohazard cleanup
forensic DNA
evidence preservation
evidence integrity
legal admissibility
forensic evidence
evidence handling
forensic integrity