Forensics Chp 4

Descripción

Forensic Science mid term chp 4 study
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Resumen del Recurso

Pregunta 1

Pregunta
The amount of spatter from a blood droplet falling on a hard, non-porous surface is _______ that of a drop of blood of equal size, falling from the same distance, onto a softer, porous surface.
Respuesta
  • The same as
  • Less then
  • Greater than

Pregunta 2

Pregunta
The pointed end of a bloodstain always faces
Respuesta
  • Opposite its direction of travel
  • Toward the direction from which the force came
  • Its direction of travel
  • Toward the position of the blood source

Pregunta 3

Pregunta
A blood droplet deposited at an angle of impact of about 90º (directly vertical to the surface) will:
Respuesta
  • Show acute elongation
  • Feature a tail showing the directionality
  • Be elliptical in shape
  • Be approximately circular in shape

Pregunta 4

Pregunta
The most common type of bloodstain pattern found at a crime scene is:
Respuesta
  • Cast-off spatter
  • Void spatter
  • Impact spatter
  • Arterial spray

Pregunta 5

Pregunta
The velocity classification of an impact spatter pattern
Respuesta
  • Cannot illuminate the specific events that produced the pattern
  • Can determined the kind of action that produced the patter
  • Is never used for descriptive purpose
  • Can only be determined by a trained bloodstain pattern analyst

Pregunta 6

Pregunta
The intersection of straight lines through the long axis of several individual bloodstains in an impact spatter pattern illustrates the ______ of the pattern
Respuesta
  • Area of origin
  • Void patter
  • Area of convergence
  • Velocity classification

Pregunta 7

Pregunta
At the crime scene, the string method is used to find the ______ of an impact spatter pattern
Respuesta
  • Area of origin
  • Void pattern
  • Area of convergence
  • Velocity classification

Pregunta 8

Pregunta
The deposition of backward spatter produced by a gunshot wound is determined be:
Respuesta
  • The location of the injury
  • The size of the wound created
  • The distance between the victim and the muzzle
  • All of the above

Pregunta 9

Pregunta
If a murder victim's blood is found in the muzzle of a firearm:
Respuesta
  • No conclusion can be made
  • It can be concluded that the firearm is the murder weapon
  • It can be concluded that the firearm was present during the injury to the victim
  • It can be concluded that the owner of the firearm is the prepetrator

Pregunta 10

Pregunta
Which weapon would create cast-off patterns consisting of small droplets in a linear pattern?
Respuesta
  • Baseball bat
  • Knife
  • Wooden plank
  • All of the above

Pregunta 11

Pregunta
The pressure of the pumping of oxygenated blood out of an injury causes bright red-colored blood to spurt out and form a(n):
Respuesta
  • Void pattern
  • Expirated pattern
  • Arterial spray pattern
  • Both b and c

Pregunta 12

Pregunta
The removal of an object or surface that was located between the origin of blood and the target surface during the blodstain deposition leaves behind:
Respuesta
  • Expirated blood
  • A void
  • Blowback spatter
  • An undentifiable pattern

Pregunta 13

Pregunta
When an object with blood on it touches one that does not have blood on it, this produces a(n):
Respuesta
  • Flow
  • Indistinguishable pattern
  • Contact pattern
  • Trail pattern

Pregunta 14

Pregunta
Widely spaced bloody shoe prints with satellite spatter between the shoe prints were likely deposited by an individual who was:
Respuesta
  • Standing in place
  • Walking slowly
  • Running
  • Carrying a bloody weapon

Pregunta 15

Pregunta
The direction of a _______ may show movement of objects or bodies while the pattern was still forming or after the blood has dried
Respuesta
  • Flow pattern
  • Cast-off pattern
  • Bloodstain tail
  • Trail pattern

Pregunta 16

Pregunta
The approximate drying time of a pool of blood can be used to estimate timing of events at a crime scene and is dependent upon:
Respuesta
  • The clotting ability of the blood
  • The blood type of the blood
  • The environmental condition of the scene
  • The method of deposition

Pregunta 17

Pregunta
The skeletonized perimeter of a bloodstain can be used to interpret:
Respuesta
  • The kind of force that produced the bloodstain
  • The time that elapsed between deposition of the stain and alteration of the stain
  • The source of the bloodstain
  • Both b and c
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