Tricia is at a crime scene involving a fire at a house. Her main task is to locate the point of origin. What does this task MOST likely include?
A.
getting a search warrant to enter the house
B.
walking around the house with a sniffer
C.
drawing a sketch of the crime scene
D.
determining where the fire began
Res
D. determining where the fire began
Thomas is transporting evidence from a possible arson back to the crime lab. When he arrives at the lab, some of his evidence is producing a dangerous gas. What error did Thomas MOST likely make when handling the evidence?
A.
He stored the evidence in glass jars.
B.
He stored the evidence in airtight containers.
C.
He stored the evidence in plastic bags.
D.
He stored the evidence in paint cans with airtight lids.
B. He stored the evidence in airtight containers.
What is TRUE about primary explosives?
A.
They are a type of low explosives.
B.
They are very sensitive to heat and friction.
C.
They are often used to detonate buildings.
D.
They include TNT and dynamite.
B. They are very sensitive to heat and friction.
When a local house was on fire, the firefighters were able to save most of it by dousing the house with water. What will happen when forensic scientists investigate this fire?
A.
The water will have destroyed most of the critical evidence.
B.
The water will not interfere with the testing of flammable liquids.
C.
The point of origin will be impossible to determine due to wet walls.
D.
Most flammable liquids will have been washed off of furniture and floors.
A. The water will have destroyed most of the critical evidence.
Rocky is a dog used to help investigate crime scenes involving fire. What is Rocky MOST likely trained to do?
A.
He can test the scene for carbon monoxide.
B.
He can detect the scent of cigarettes and matches.
C.
He can find a fire’s point of origin by sniffing for it.
D.
He can smell the scene to find flammable liquids.
D. He can smell the scene to find flammable liquids.
The task of locating the point of origin in a fire at a house would most likely include option D - determining where the fire began.
To determine the point of origin, Tricia would need to carefully examine the scene and look for clues that can help identify where the fire started. This process may involve looking for patterns of damage or burn marks, identifying the area with the most intense heat or charring, and analyzing any potential sources of ignition. Tricia may also need to consider factors such as the layout of the house, the presence of any accelerants, and witness statements.
While options A, B, and C may be relevant to a crime scene investigation, they are not specifically related to determining the point of origin in a fire. Getting a search warrant to enter the house (option A) would be necessary if Tricia does not have legal access to the property. Walking around the house with a sniffer (option B) could be helpful in detecting any traces of accelerants that might have been used to start the fire. Drawing a sketch of the crime scene (option C) can assist in documenting the layout and key features, but it is not directly tied to identifying the point of origin.