Crime Scene Processing and Analysis

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Crime Scene Processing and Analysis
2012-04-16 20:27:41
Forensic science crime scene

Made for "Introduction to Forensic Science & Criminalistics" by Gaensslen, Harris and Lee
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  1. First responder
    First police officer or investigator to arrive on a scene
  2. Crime scene security
    Limit and control access to crime scene; maintaining records of who was present
  3. Elimination fingerprints
    Fingerprints from everyone who enters the secure crime scene area
  4. Scene survey
    Preliminary walkthrough of scene; note taking of transient physical evidence
  5. Evidence recognition
    Determination of whether physical evidence is relevant to case or part of scene background
  6. Scene search
    Detailed systematic search of crime scene with objective of noting every condition and every relevant item of physical evidence
  7. Documentation
    Creation of detailed, complete records of a crime scene; notes, photos, sketches, audio and video
  8. Working hypothesis
    Initial theory based on observation of crime scene; can generate predicitons about physical evidence
  9. Notes
    Written or taped records for documenting a crime scene; initial conditions, contacts, etc.
  10. Sketches
    Drawings of scenes with measurements or is to scale; special correctness between fixed points and evidence items
  11. Cross-projection sketch
    3D room drawn in 2D
  12. Crime scene photography
    Technically proper photography of crime scene for purposes of complete documenting; captures complete detail
  13. Camera
    Analog or digital device for storing images
  14. Les
    Optical component of a camera; changes view of image
  15. F-stop
    Amount of light entering lens of camera
  16. Depth of field
    Distance behind and in front of a subject
  17. Videography
    Use of video to document crime scene
  18. Duty to preserve
    Obligation imposed by courts on law enforcement agencies and their personnel to preserve audio and video recordings for a specified time
  19. Evidence collection and preservation
    Seizing and packaging of physical evidence; documenting scene patterns that cannot be physically collected
  20. Evidence collection techniques
    Forceps, tape lifts, shaking, scraping and vacuuming
  21. Controls
    Required to ensure lab test will permit proper comparison
  22. Reenactment
    Hypothetical rendition of a set of events at crime scene