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How to proceed a crime scene?

How to proceed a crime scene?. Processing a Crime Scene . I- solate and secure the scene D- ocument the scene S- earch for evidence C- ollect and package evidence, maintaining the chain of custody S- ubmit evidence to the crime lab for analysis. Steps:.

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How to proceed a crime scene?

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  1. How to proceed a crime scene?

  2. Processing a Crime Scene  I-solate and secure the scene D-ocument the scene S-earch for evidence C-ollect and package evidence, maintaining the chain of custody S-ubmit evidence to the crime lab for analysis

  3. Steps: • Secure the area with the police tape • Inspect the crime scene • Put the number tags near evidences • Take photos of the crime scene and evidences • Sketch on a sheet of paper (rough) • Write a summary of the crime scene (rough) • Re-sketch the crime scene (finished) • Collect and package evidences • Write a report (crime scene reconstruction)

  4. Sketches • Once photos have been taken, the crime-scene investigator sketches the scene • Rough Sketch a draft representation of all essential info & measurements at a crime scene. This sketch is drawn at the crime scene. It shows dimensions & location of objects. Include North. • Objects are located in the sketch by distance measurements from 2 fixed points. All measurements are made w/ a tape measure. • The simplest way to designate an item is to assign it a # or letter. A legendmust be placed below the sketch. • Finished Sketcha precise rendering of the crime scene, drawn to scale.

  5. Information On Evidence Packaging • The following information should be included on evidence packaging: • Location of crime scene • Location of evidence at scene and time of collection • Personnel who collected the evidence • Condition of item at time of collection • Chain of Custody log

  6. Packaging the Evidence • Evidence is placed in a paper bindle. The size of the bindle depends on the size of the evidence. • Entire object should be sent to the lab. • Each different item must be placed in separate containers. Packaging evidence separately prevents cross contamination. • Plastic bags used for hair, fiber, glass evidence • small amts of trace evidence can be conveniently packaged in a carefully folded paperdruggist fold: folding one end of the paper over 1/3, then folding the other end (1/3) over that, & the repeating the process from the ther 2 sides. After the paper is folded, the outside 2 edges r tucked into each other to produce a closed container.

  7. "Golden Rule" of Crime Scene Investigation/Management "Never touch, change, or alter anything until it has been documented, identified, measured, and photographed . . . when a body or article has been moved, it can never be restored to its original position."

  8. Crime Scene Reconstruction CRIME SCENE RECONSTRUCTIONinvolves forming a hypothesis of the sequence of events from before the crime was committed through its commission; It’s a method used to support a likely sequence of events at a crime scene by observing, evaluating physical evidence. Reconstruction is a team effort that involves putting together many different pieces of a puzzle. Using physical evidence he can hypothesize about what occurred, where it occurred & when it occurred.

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