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THE CRIME SCENE INVESTIGATOR
I
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Perform through discussion the job of a Crime Scene Investigator
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Perfect documentation of the Crime Scene
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Evaluate collection of Physical Evidences
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MOTIVATION/PROMPTING QUESTION/S
How important is investigator? Would there be an investigation
without an investigator?
iii
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Perhaps just as often though,
potentially valuable evidence is destroyed or rendered useless by
clueless behavior and handling at the crime scene
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The ultimate responsibility rests with administrators, police
supervisors and detectives to reinforce positive conduct by setting a
good example for others officers to follow
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The forensic
science field is an ever-changing discipline holds the key for solving
special crimes
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These
scientific advancement and technological breakthroughs have
increased the possibility and likelihood of collecting and analyzing
physical evidence that has never possible before
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The need for specialized units in the
processing of
all crimes is essential
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The crime
scene units would have the capability to professionally evaluate and
collect pertinent physical evidence from the crime scenes
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Making it easier for
police investigators solve crimes, identify criminals and provide for the
evidences necessary for the prosecution to build a strong case against
the accused
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This is a multi-various job which involves identifying the
criminals, locating the criminal offender, providing evidence to prove
the guilt and acting as a witness in favor of the prosecution
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A Crime Scene Investigator needs to possess extensive knowledge in
the natural sciences, as well as law enforcement and crime scene
processing
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Beyond dealing with a potentially unnerving crime scene,
these professionals, must also possess keen observational and technical
skills, as they are called upon to identify and collect even the smallest
amount of physical evidences- evidence that may mean the difference
between unsolved crime and a successful conviction
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In often chaotic crime scene
situations, these professionals must be able to seamlessly complete the
job through an effective communication and a strong understanding
and appreciation of accepted protocols
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They must be able to organized and effective at both
written and oral communications
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The job of the Crime Scene Investigator:
To carry out the many responsibilities assigned to an investigator,
deductive logic is utilized
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The job of the investigator involves the task of identifying the criminal
offender, protecting the crime scene, collection of evidence from the

crime scene, interviewing witnesses, reconstructing the crime scene,
tracing and locating the suspect, vigorous questioning of the suspect in
custody and in observance of due process, serves as a witness in favor
of the aggrieved or offended party
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Rule 13
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1
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Sec
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Upon receipt of a report/complaint of a crime incident, the desk
officer shall:
a
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Inform his superior officer of the duty officer regarding the report
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3
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Cordon off the crime scene with whatever available materials like
ropes, straws, human barricade, police line, of available, etc
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Evacuate injured persons to the nearest hospital;
c
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Prevent entry/exit of persons within the cordoned area; and e
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Sec
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Crime Scene Investigation Proper

1
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- The team
leader upon arrival at the crime scene receives the briefing from the
first responder and shall immediately designate a command post which
is ideally located adjacent to the scene where the evidence custodian
stays and receive the pieces of evidence turned over to him for safekeeping by the other evidence collectors
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Initiation of Preliminary Survey
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He then defines
the extent of the search area, and determines personnel and
equipment needed, and makes specific assignments
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3
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- The team leader uses the
systematic approach in making a narrative report
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4
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- The photographer begins
taking photographs as soon as possible
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Sketches
supplement the photographs
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5
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- A rough sketch is prepared indicating the
actual measurement of things with scale and proportion observed and
oriented to the North Pole
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6
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- The search for physical evidence is done using the
accepted methods of search depending upon the actual location to be
searched
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Collection of Physical Evidence
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The evidence collector shall
put his initial, location and date of collection on the item and turn it
over to the evidence custodian for documentation and safekeeping
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8
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- The team leader makes a final review of the
crime scene to determine whether or not the processing has been
completed
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Release of the Crime Scene
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Thus, the investigator must evaluate the items
recovered from the results of interrogation of the suspect/s and the
interview of the witnesses
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Sec
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Conduct of Interview – while the crime scene is being
processed, the team leader shall designate other members to look for
witnesses and immediately conduct interview
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Sec
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Arrest of Suspect/s – Upon arrival at the crime scene, the team
leader shall endeavor to arrest the suspect/s if he is still at the crime
scene or the first responder did not arrest the suspect/s
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