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Crime Scene Section
The
fulltime officers assigned to this section process crime scenes
when officers or detectives call for their services. The Crime
Scene Technicians collect and process evidence, such as taking
photographs and fingerprints from scenes of thefts, traffic
fatalities, autopsies, and homicides or deaths from unusual or
undetermined causes. The Crime Scene Section is a vital part of
criminal investigations, because the evidence that the
technicians obtain and handle allows the department to solve
serious cases.
Crime Scene
Technicians use various instruments and methods to process
evidence:
- The
alternate light source, available through a grant from the
state, can detect blood, hair, semen, fingerprints,
gunpowder, and bruises under the skin by using different
colored lights and lenses to detect what would not be
visible to the naked eye.
- Luminol is a chemical that makes small traces of blood glow
in a florescent color.
- Nyn
hydrin is a chemical used to lift fingerprints from paper.
- The
super glue fuming chamber uses super glue to create a vapor
that adheres to fingerprints so they can be lifted.
- The
Automated Fingerprint Identification System (AFIS) is a
statewide database that provides fingerprint matches from
which detectives can make arrests.
- The
Hilti PD 25 is a laser used to measure evidence at crime
scenes such as homicides, and skid marks and distances at
vehicle crash sites. Rolatape is a special tape measure
used for the same purpose.
- The
evidence drying room is used to dry clothing that has been
dampened from blood or any other bodily fluids, chemicals,
or liquid substances.
- The
Crime Lab Technicians produce scale drawings of crime
scenes.
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