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Crime Scene Procedures

Crime Scene Procedures. Meghan S., Caroline & Brianna. First Responder. The first official on the scene is the first responder Must record everything that happens on the scene Procedures must be done correctly to make sure it’s properly documented. Scene Procedures.

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Crime Scene Procedures

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  1. Crime Scene Procedures Meghan S., Caroline & Brianna

  2. First Responder • The first official on the scene is the first responder • Must record everything that happens on the scene • Procedures must be done correctly to make sure it’s properly documented

  3. Scene Procedures Sketch of a room/scene

  4. Scene Search Methods • Link Method • Grid Method • Zone Method • Line/Strip Method • Wheel/Ray Method • Spiral Method 1 2 3 4 Line/Strip Zone Wheel/Ray Grid Spiral

  5. Types of Evidence • Blood • Semen • Saliva • Sweat • Hair • Fibers • Documents • Fingerprints • Glass • Paint • Powder residues • Plastic and rubber items • Tool marks • Wood and metal objects • Impressions

  6. Impressions Procedures Identify substance impression is in Identify what made impression Measure all sides of impression

  7. Evidence Collection Procedures Be authorized to collect evidence Never touch evidence with bare hands-wear gloves! Evidence Swab for DNA

  8. Evidence Tool Box Collection tubes Wet Evidence Envelopes Evidence baggies Scalpels Tweezers Protective goggles Evidence Logs

  9. Evidence Markers Evidence markers help the investigators and police officers identify where evidence is located and how many pieces of evidence are on the scene. It essentially keeps all of the evidence accounted for before it can be taken in for examination.

  10. Coroner’s Job • Coroner arrives after first responder • Certified to determine if victim(s) is/are dead

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