Forensics Chapter 4 Questions and Answers
The skeletonized perimeter of a bloodstain can be used to
interpret:
Ans: The source of the bloodstain, the time that elapsed between
deposition of the stain and alteration of the stain.
A blood droplet deposited at an angle of impact of about 90
degrees°(directly vertical to the surface) will:
Ans: Be approximately circular in shape
The velocity at which blood strikes a surface is not useful to
describe the specific events that produced the spatter pattern.
(T/F)
Ans: True
Void spatter is the most common type of bloodstain pattern
found at a crime scene. (T/F)
Ans: False
Setting up squares of known dimension over the entire pattern
describes the:
Ans: Grid Method
The direction of a ________ may show movements of objects or
bodies while the pattern was still forming or after the blood has
dried.
Ans: Flow Pattern
Gunshot exit wounds commonly produce medium-velocity
spatter, while explosions produce high−velocity Spatter. (T/F)
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Ans: False
The removal of an object or surface that was located between the
origin of blood and the target surface during the bloodstain
deposition leaves behind:
Ans: A void
Droplets of ________ are very small. They may not travel far and
could be overlooked.
Ans: High velocity splatter
Crime scene reconstruction requires the piecing together of:
Ans: Accounts given by the witnesses and suspects, the story told by
evidence recovered at the crime scene and the input from the medical
examiner.
The intersection of straight lines through the long axis of several
individual bloodstains in an impact spatter pattern illustrates the
________ of the pattern.
Ans: Area of convergence
Widely spaced bloody shoeprints with satellite spatter between
the shoeprints were likely deposited by an individual who was:
Ans: Running
The location of injury, the size of the wound created, the distance
between the victim and the muzzle of the weapon all affect the
amount of backward spatter that occurs. (T/F)
Ans: True
What should one surmise if a flow found on an object or body
does not appear consistent with the direction of gravity?
Ans: The object or body was moved after the blood had dried.
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