| The responsibility of the Crime Scene Investigator
includes examination of the scene of a crime, documenting the conditions present, and
providing the investigators, attorneys and ultimately the jury, with an accurate depiction
of the locations and relationships of items located
within the scene.They determine the relevance of items within the scene and the
evidentiary potential of the items as related to the crime under investigation. Crime
Scene Investigators preserve and collect the items deemed potential evidence, as well as
process the items of evidence that are not removable from the scene. These investigators
deliver the evidence to the appropriate forensic examiner and then prepare a report
detailing the actions taken at the crime scene.
The purpose of crime scene investigation is to help
establish what occurred (crime scene reconstruction) and to identify the responsible
person. The ability to recognize and properly collect physical evidence is oftentimes
critical to both solving and prosecuting violent crimes. It is no exaggeration to say that
in the majority of cases, the law enforcement officer who protects and searches a crime
scene, plays a critical role in determining whether physical evidence will be used in
solving or prosecuting violent crimes.
Despite Hollywoods portrayal, crime scene investigation is a difficult and
time-consuming job. There is no substitute for a careful and thoughtful approach. An
investigator must not leap to an immediate conclusion as to what happened based upon
limited information, but must generate several different theories of the crime, keeping
the ones that are not eliminated by incoming information at the scene. Reasonable
inferences about what happened are produced from the scene appearance and information from
witnesses. These theories will help guide the investigator to document specific conditions
and recognize valuable evidence. |