What are the 5 steps in crime scene investigation?

What are the 5 steps in crime scene investigation?

The basic crime scene procedures are physical evidence recognition, documentation, proper collection, packaging, preser- vation, and, finally, scene reconstruction.

What are the 3 basic steps in crime scene proc?

Collect, preserve, mark and package the evidence. Seal the evidence.

What are the first things you do at a crime scene?

7 Steps of a Crime Scene Investigation

• Identify Scene Dimensions. Locate the focal point of the scene.
• Establish Security. Tape around the perimeter.
• Create a Plan & Communicate. Determine the type of crime that occurred.
• Conduct Primary Survey.
• Document and Process Scene.
• Conduct Secondary Survey.
• Record and Preserve Evidence.

What are the 4 parts of a crime scene sketch?

There are 4 main types of sketches: floor plan, elevation drawing, exploded view, and perspective drawings. Each type has its own limitations and are used when called upon (because of the scene). Floor Plan: commonly called bird’s eye view.

How do you start a crime scene?

7 Steps of a Crime Scene Investigation

1. Identify Scene Dimensions. Locate the focal point of the scene.
2. Establish Security. Tape around the perimeter.
3. Create a Plan & Communicate. Determine the type of crime that occurred.
4. Conduct Primary Survey.
5. Document and Process Scene.
6. Conduct Secondary Survey.
7. Record and Preserve Evidence.

What is the first thing you do at a crime scene?

Conduct a primary survey/walkthrough – An initial survey of the scene is then conducted to prioritize evidence collection. During this walkthrough, the lead investigator will identify potentially valuable evidence, take notes and capture initial photographs of the scene and the evidence.

What should you not do at a crime scene?

Here are 5 things you should and should NOT do when a crime scene or traumatic incident occurs in your home, business or property.

• 1 – Do NOT touch, or have anyone else touch anything.
• 2 – Do NOT clean it yourself, or have a family member or employee clean up.

What do investigators look for at a crime scene?

Crime scene investigators collect evidence such as fingerprints, footprints, tire tracks, blood and other body fluids, hairs, fibers and fire debris. Identification of blood and other body fluids at the scene.

What are the 4 primary search patterns?

Search Patterns

• Lane or Line.
• Spiral or Circle.
• Pie or Wheel/ Radial or Rose Azimuth.
• Grid.
• Zone or Quadrant.