When arriving on a crime scene What are three 3 primary purposes of a crime scene technician?

What are three 3 primary purposes of a crime scene technician?

The primary responsibilities of a crime scene technician include collecting evidence, analyzing data, and providing written and oral reports on their findings.

What are three goals of a crime scene investigator?

The goals and objectives of the Crime Scene Investigations units are the collection, preservation, packaging, transportation, and documentation of physical evidence left at the crime scene.

What are the first 3 steps when you arrive at a crime scene?

Basic Stages for a Crime Scene Investigation — Possible Homicide

  • Approach the Scene. …
  • Secure and Protect the Scene. …
  • Initiate Preliminary Survey. …
  • Evaluate Physical Evidence Possibilities. …
  • Prepare a Narrative of the Scene. …
  • Capture the Scene Photographically. …
  • Prepare the Crime Scene Sketch. …
  • Conduct a Detailed Search.
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1.11.2012

What is the main purpose of doing crime scene search?

Determine a sequence of events. Recover physical evidence of the crime. Reconstruct the incident. Uncover a motive.

What are the 3 phases of criminal investigation?

Applied to the criminal realm, a criminal investigation refers to the process of collecting information (or evidence) about a crime in order to: (1) determine if a crime has been committed; (2) identify the perpetrator; (3) apprehend the perpetrator; and (4) provide evidence to support a conviction in court.

What are the 7 basic steps in crime scene investigation?

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 is the first thing you do at a crime scene?

“The initial responding officer (s), upon arrival, shall assess the scene and treat the incident as a crime scene. They shall promptly, yet cautiously, approach and enter the crime scene, remaining observant of any persons, vehicles, events, potential evidence, and environmental conditions.”

What is the golden rule of crime scene investigation?

The Golden Rule in Criminal Investigation. “ Do not touch, alter, move, or transfer any object at the crime scene unless it is properly marked, measured, sketched and/or photographed .”

What are the two types of evidence?

There are two types of evidence — direct and circumstantial. Direct evidence usually is that which speaks for itself: eyewitness accounts, a confession, or a weapon.

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What are the 5 steps in a crime scene investigation?

INTERVIEW, EXAMINE, PHOTOGRAPH, SKETCH and PROCESS.

What are the two types of barriers at a crime scene?

Public or outer barrier. Inner or “command area” barrier.

What are the 5 parts of processing a crime scene?

Terms in this set (5)

  • Interview witnesses/people involved to establish the theory of the case. …
  • Examine the scene using a systematic search method. …
  • Sketch the scene to create an overall diagram. …
  • Photograph the scene, the evidence, the body to get detailed pictures of what everything looked like at that moment.

What are the 4 types of crime scene searches?

Terms in this set (10)

  • Crime Scene Search Patterns? A systematic search of the crime scene is important. …
  • What are the different types of search patterns? Lane or Line. …
  • Lane or Line (strip) search. …
  • Spiral or Circle search. …
  • Pie/Wheel or Radial/Rose Azimuth search. …
  • Grid search. …
  • Zone or Quadrant search. …
  • Crime Scene Search.

What are the four patterns of evidence?

Following are the basic search methods, usually commissioned on the crime scene:

  • Zonal Method.
  • Strip Method.
  • Line Search.
  • Grid Method.
  • Spiral Method (Outward Spiral & Inward Spiral)
  • Wheel Search Method.
  • Random Search.

4.01.2020

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.
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28.09.2016

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