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Crime Scene Investigation

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Title: Crime Scene Investigation


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CRIME SCENE INVESTIGATION
  • PRESENTED BY GURURAJ KULKARNI
  • GUEST FACULTY KARNATAKA POLICE TRAINING COLLEGE
    GULBARGA

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ARRIVING AT THE SCENE INITIAL RESPONSE
  • 1. Initial response to an incident means
  • A) beginning of the investigation of crime scene.
  • B) it should be expeditious and methodical.

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Who is initial responding officer? What is his
role in investigation?
  • The officer who first arrives at the crime scene.
  • The initial responding officer often makes or
    breaks a crime scene.
  • He gives Direction to crime scene.
  • He shall promptly yet cautiously approaches and
    enters the scene

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  • Observant of any person, vehicles, events,
    potential evidence and environment conditions.

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The duties of the initial responding officer
  • Recording the Time.
  • Entering the Scene Proper

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1st STEP
  • The officer should do the following1. Note or
    log dispatch information (for example, address/
    location, time, date, type of call, and parties
    involved)
  • 2. Note any persons or vehicles leaving the crime
    scene.
  • 3. Approach the scene cautiously, scan the entire
    area to thoroughly assess the scene, and note any
    possible secondary crime scenes.

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  • 4. Pay the attention to any persons or vehicles
    in the vicinity that may be related to the crime.
  • 5. Make initial observations (look, listen,
    smell) to assess the scene and ensure officer
    safety before proceeding.
  • 5. Remain alert and attentive.
  • 6. Assume that the crime is ongoing until
    determined to be otherwise.

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  • 7. Treat the location as a crime scene until
    assessed and determined to be otherwise.
  • The safety and physical well-being of officers
    and other individuals, in and around the crime
    scene, are the initial responding officers first
    priority.

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2nd STAGE
  • 1. Ensure that theres no immediate threat to
    other respondersscan area for sights, sounds,
    and smells that may present danger to personnel
    (for example, hazardous materials such as
    gasoline or natural gas).
  • 2.If the situation involves a clandestine drug
    laboratory, biological weapons, or radiological
    or chemical threats, the appropriate
    personnel/agency should be contacted prior to
    entering the scene.

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  • 3. Approach the scene in a manner designed to
    reduce risk of harm to the officer while
    maximizing the safety of victims, witnesses, and
    others in the area.
  • 4. Survey the scene for dangerous persons and
    control the situation

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  • 5. Notify supervisory personnel and call for
    assistance/ backup if necessary.
  • After controlling any dangerous situations or
    persons, the initial responding officers next
    responsibility is to ensure that medical
    attention is provided to injured persons while
    minimizing contamination of the scene.

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3rd STAGE
  • 1. Assess the victim or victims for signs of
    injuries and life and provide immediate medical
    attention.
  • 2. Call for medical personnel.
  • 3. Guide medical personnel to the victim to
    minimize contamination/alteration of the crime
    scene.

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  • 4. Point out potential physical evidence to
    medical personnel, instruct them to minimize
    contact with such evidence.
  • 5. Ensure that medical personnel preserve all
    clothing and personal effects without cutting
    through bullet holes, knife tears. Document
    movement of persons or items originating from the
    scene.
  • 6. Instruct medical personnel not to clean up
    the scene and to avoid removal or alteration of
    items originating from the scene.

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  • 7. If medical personnel arrived first, obtain the
    name, unit, and telephone number of attending
    personnel, and the name and location of the
    medical facility where the victim is to be taken.
  • 8.If theres a chance the victim may die, attempt
    to obtain a dying declaration.

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  • 9. Document any statements/comments made by
    victims, suspects, or witnesses at the scene.
  • 10. If the victim or suspect is transported to a
    medical facility, a law enforcement official
    should accompany the victim or suspect to
    document any comments made and preserve evidence.

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4th STEP
  • Controlling, identifying, and removing persons at
    the crime scene and limiting the number of
    persons who enter the crime scene and the
    movement of such persons is the next important
    function of the initial responding officer in
    protecting the crime scene.

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  • 1. Control all individuals at the sceneprevent
    individuals from altering/destroying physical
    evidence by restricting movement, location, and
    activity while ensuring and maintaining safety at
    the scene.

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  • 2. Identify all individuals at the scene, such as
    suspects (secure and separate), witnesses (secure
    and separate), bystanders, victims/family/friends
    (control while showing compassion), and medical
    and other assisting personnel. If the individual
    is a witness, treat as above if not, remove from
    the scene.

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  • 3. Exclude unauthorized and nonessential
    personnel from the scene (law enforcement
    officials not working the case, politicians,
    media).

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5th STEP
  • Next, defining and controlling boundaries provide
    a means for protecting and securing the crime
    scene.
  • The number of crime scenes and their boundaries
    are determined by their location(s) and the type
    of crime.
  • Boundaries should be established beyond the
    initial scope of the crime scene(s) with the
    understanding that the boundaries can be reduced
    in size

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  • 1. Identify potential points and paths of exit
    and entry of suspects and witnesses as well as
    places where the victim/evidence may have been
    moved (be aware of trace and impression evidence
    while assessing the scene).

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  • 2. Set up physical barriers (ropes, cones, crime
    scene barrier tape, available vehicles,
    personnel, other equipment) or use existing
    boundaries (doors, walls, gates).
  • 3. Document the entry/exit of all people entering
    and leaving the scene after boundaries have been
    established.
  • 4. Control the flow of personnel and animals
    entering and leaving the scene to maintain
    integrity of the scene.

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  • 5. Effect measures to preserve/protect evidence
    that may be lost or compromised (protect from the
    elements rain, snow, wind and from footsteps,
    tire tracks, and sprinklers).
  • 6. Document the original location of the victim
    or objects that you observe being moved.

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  • 7. Consider search and seizure issues to
    determine the necessity of obtaining consent to
    search and/or obtain a search warrant.
  • 8. Persons shouldnt smoke, chew tobacco, use the
    telephone or bathroom, eat or drink, move any
    items (including weapons) unless necessary for
    the safety and well-being of persons at the
    scene, adjust the thermostat or open windows or
    doors (maintain scene as found), touch anything
    unnecessarily (note and document any items
    moved), reposition moved items, litter, or spit
    within the established boundaries of the scene.

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  • Establishing boundaries is a critical aspect in
    controlling the integrity of evidentiary
    material.
  • Its important that all POLICE officers have a
    good basic knowledge of crime scene protocols and
    procedures.

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DEDICATION
  • DEDICATED TO THE POLICE
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