Evidence Processing

Crime Scene Investigators are responsible for examining all evidence, including but not limited to vehicles, guns, and documents for latent fingerprints (fingerprints left behind after touching an object) and for comparing known prints to the latent prints in an attempt to identify a suspect.  The investigator must keep abreast of the latest techniques for development of latent fingerprints, including chemical formulas, alternate light sources (lasers) and photographic techniques that may enhance the latent fingerprint being developed.  A fingerprint is the most positive form of identification and is powerful evidence when presented to a jury during a court trial.  The investigator is also trained to examine evidence for blood, hair, soil, and fibers in an attempt to link a suspect to a crime.

2015 Facts and Figures:

  • Approximately 2,759 items of evidence were procesed for fingerprints, DNA, and trace evidence by the Crime Lab from 1,357 cases.
  • In that year, there were also5,214 latent fingerprints that were compared with suspects.
  • Of those same latents, 137 were identified to a specific person.
  • Our Forensic Data Services Unit processed 369 cell phones, 121 computers and 105 videos from various cases.
Click on the latent comparison below

latent comparison