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Criminalistics Laboratory - Latent Print & Identification Section

Fingerprints viewed on screen

The Latent Print and Impression Evidence section of the DCI Crime Laboratory examines submitted evidence for the presence of fingerprints, footwear/tires, and Automated Biometric Identification System (ABIS) entry.   The techniques used in the development of latent prints range from traditional fingerprint powdering techniques and superglue fuming, to advanced techniques such as fluorescent dye stains and alternate light sources.

Reflective Ultraviolet Imaging System (RUVIS)
                                    Reflective Ultraviolet Imaging System (RUVIS)

Gentian Violet Super Glue Chambers
Gentian Violet on duct tape


Superglue chambers



Latent print examiners attempt to identify latent prints from crime scenes to individuals.  If they are not identified or there is no known suspect for the crime, then the identifiable latent prints are entered into ABIS, a state-wide database of finger and palm prints, and/or the FBI’s Next Generation Identification (NGI), a nation-wide database of finger and palm prints.

AFIS Comparison Screenshot
                               ABIS Comparison Screenshot


Footwear and Tire Track examinations (Impression Evidence) are also conducted at the laboratory, and are similar to Latent Print examinations, except the evidence are shoes and tires.

Footwear Impression in Dust
                                               Footwear impression in dust