Why are arson investigations difficult?
Arson is also a difficult crime to investigate because of its destructive nature (Saferstein, 2004), and this also calls for a great deal of training and knowledge on the part of those who seek to research the act and catch the actor.
What is the most challenging part of investigating a fire or explosion crime scene?
In my opinion, the most challenging part of investigating a fire or explosion crime scene would be moving at a quick pace without error. I feel that in an arson situation it would be difficult to decide what should be done first. The risk of the fire starting back up or evidence being lost is very high in these cases.
What 3 factors determine the extent of the transfer of forensic evidence?
the intensity, duration, and nature of the materials in contact determine the extent of the transfer.
What are some special challenges when processing a suspected arson scene?
At the time the scene is determined to involve an arson or other crime, the investigator must address legal requirements for scene access, search and evidence seizure. Identify, collect and preserve evidence. Prevent evidence contamination. Package and transport evidence.
What are signs of arson?
Common Signs of Arson
- A large amount of damage.
- No “V” burn pattern present, unsual burn patterns and high heat stress.
- Lack of accidental causes.
- Evidence of forced entry.
- Absence of valuable items.
- The same person shows up at unconnected fires.
- Low burning point with unidentifiable point of origin.
- Multiple points of origin.
What are the physical evidence of arson?
The physical evidence included charring on the floor, multiple places where the fire was started, and an observation that the fire was very hot. They concluded that these were all indicative of an arson fire.
Who collects evidence?
Crime scene investigators document the crime scene. They take photographs and physical measurements of the scene, identify and collect forensic evidence, and maintain the proper chain of custody of that evidence.
What are the four basic functions of a forensic scientist?
Forensic Scientist Responsibilities: Identifying and collecting physical evidence, and making notes. Attending autopsies to make observations, gather evidence, and take photographs. Making crime scene sketches. Processing evidence in the laboratory.