Different types of crime scenes include outdoors, indoor, and conveyance.
Outdoor crime scenes are the most difficult to investigate.
The exposure to elements such as rain, wind, or heat, as well as animal activity, contaminates the crime scene and leads to the destruction of evidence.
What is outdoor crime scene?
The Outdoor Crime Scene
The risk is greatest when crime scene investigators fail to secure the crime scene properly. Destruction or deterioration of evidence due to environmental conditions such as heat, cold, rain, snow and wind are problems associated with outdoor scenes.
What are the 3 types of photographs that need to be taken at a crime scene?
There are three classifications of forensic photos — overviews, mid-range and close-ups. If the crime took place inside, overviews include photos of the outside of the building, its entrances and exits as well as images that place the building in relation to its surroundings.
What are the 5 steps in crime scene investigation?
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 is the difference between a primary and secondary crime scene?
Crime scenes, therefore, are considered either primary or secondary. The primary crime scene is where a crime actually occurred. A secondary crime scene is in some way related to the crime but is not where the actual crime took place.
What are the 3 categories of tool marks?
There are three major categories of tool marks: identification marks, abrasion marks, and cutting marks.
- If it is possible, tool mark evidence should be collected and preserved for analysis.
- The cast impression will retain the unique indentation marks made by a specific tool.
Who collects evidence at a crime scene?
This evidence is collected by crime scene investigators (CSIs) and Law enforcement. The location of a crime scene can be the place where the crime took place, or can be any area that contains evidence from the crime itself.