What are the two priorities while securing a crime scene?
police officers who discover and secure the crime scene. First priority is the safety of all individuals. Assist or preserve the life of the victim. document crime scene and collect evidence.
What is the most important thing when securing a crime scene?
One of the most important aspects of securing the crime scene is to preserve the scene with minimal contamination and disturbance of physical evidence. First Responders to an incident should document the placement and/or movement of items at the scene.
What are the two main tools for documenting a crime scene?
for the crime–scene investigators. Crime–scene investigators document the crime scene in detail and collect physical evidence. Crime–scene investigators include recorders to record the data, sketch artists to sketch the scene, photographers to take photos of the crime scene, and evidence collectors.
How do you secure 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 two types of evidence?
There are two types of evidence; namely, direct evidence and circumstantial evidence.
What are the two most common items left at a crime scene?
Fingerprints are by far the most common type of physical evidence found in most crime scenes, though there are a number of other types of evidence that must be identified and collected from the crime scene as well, including biological and trace evidence, as well as evidence left by the use of firearms or other weapons …
What are the 7 S’s of a crime scene?
The Seven S’s of Crime-Scene Investigation
- Securing The Scene.
- Securing And Collecting Evidence.
- Separating The Witnesses.
- Sketching The Scene.
- Seeing The Scene.
- Scanning The Scene.
- Searching For Evidence.
What are the 5 steps of crime scene investigation?
INTERVIEW, EXAMINE, PHOTOGRAPH, SKETCH and PROCESS.
What is the first thing you do at a crime scene?
Photograph and document the scene. Collect trace materials (especially from probable points of entry) Collect low-level DNA evidence by swabbing areas of likely contact. Collect other items that may contain biological evidence.
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 four methods of documenting a crime scene?
There are several methods of documentation: Notes, photography, sketches, and video are all important. Note taking is one of the most important parts of processing the crime scene.
What are the four types of crime scene sketches?
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).
How do you investigate a case?
Good case theory should involve the following steps:
- First, take all allegations and complaints seriously. …
- Learn the elements of proof for the suspected offense(s). …
- Investigate and analyze any data and information you gather during your investigation. …
- Carefully organize and maintain all the evidence you find.
What are the 3 stages of the death investigation process?
The 3 stages of a Death Investigation are Examination, Correlation, and Interpretation. All are equalling important, each stage needs the input of all involved in that stage of the investigation and each may need specialized input.
What is the initial step that must be done to secure the crime scene?
Keep the following steps in mind:
Limit access to and movement on the crime scene. Secure the scene by moving bystanders to a designated area. If the route used by the perpetrator to get to and from the scene is known, alternative access routes to the scene need to be identified for use by emergency personnel and …