Question 1

How can an investigator determine the area of convergence and an area of impact for a given blood pattern?

Accepted Answer

An investigator can determine the area o...

Question 2

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:

Accepted Answer

A)   the environmental condition of the scene
B)   the blood type of the blood
C)   the clotting ability of the blood
D)   the position of the victim
E)   the method of deposition

Question 3

If a murder victim's blood is found in the muzzle of a firearm:

Accepted Answer

A)   it can be concluded that the firearm was present during injury to the victim.
B)   it can be concluded that the owner of the firearm is the perpetrator.
C)   no conclusion can be made.
D)   it can be concluded that the firearm is the murder weapon.
E)   it can be concluded that the firearm was not present during the murder.

Question 4

The ________________ of a bloodstain pattern in a three-dimensional space illustrates the position of the victim or suspect when the stain-producing event took place.

Accepted Answer

A)   directionality
B)   tangent area
C)   area of origin
D)   area of convergence
E)   void

Question 5

Diagram and describe the three types of impact spatter and how these patterns can be used at a crime scene.

Accepted Answer

Impact spatter refers to the bloodstain ...

Question 6

A blood droplet deposited at an angle of impact of about 90º (directly vertical to the surface)  will:

Accepted Answer

A)   always be 3 cm in diameter.
B)   be approximately circular in shape.
C)   show acute elongation.
D)   feature a tail showing the directionality.
E)   be elliptical in shape.

Question 7

Crime scene reconstructions have the best chance of accuracy if:

Accepted Answer

A)   investigators process all evidence at the crime laboratory.
B)   investigators trust their first instincts and test their first theories.
C)   investigators use proper documentation and collection methods for all types of evidence.
D)   investigators exclude all testimonial evidence.
E)   investigators never utilize eye-witness testimony.

Question 8

Explain how the texture of a surface, directionality and the angle of impact can impact the shape of the individual bloodstains.

Accepted Answer

The texture of a surface, directionality...

Question 9

The pressure of the pumping of oxygenated blood out of an injury causes bright red-colored blood to spurt out and form a(n) :

Accepted Answer

A)   void pattern.
B)   expirated pattern.
C)   arterial spray pattern.
D)   both B and C.
E)   both A and C.

Question 10

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:

Accepted Answer

A)   a void.
B)   expirated blood.
C)   an unidentifiable pattern.
D)   a transfer pattern.
E)   blowback spatter.

Question 11

The pointed end of a bloodstain always faces:

Accepted Answer

A)   toward the position of the blood source.
B)   opposite its direction of travel.
C)   toward the direction from which the force came.
D)   in its direction of travel.
E)   none of the above.

Question 12

Which weapon would create cast-off patterns consisting of small droplets in a linear pattern?

Accepted Answer

A)   wooden plank
B)   knife
C)   baseball bat
D)   all of the above
E)   none of the above

Question 13

The deposition of backward spatter produced by a gunshot wound is determined by:

Accepted Answer

A)   the location of the injury.
B)   the location of the surface of deposition.
C)   the distance between the victim and the muzzle.
D)   the size of the wound created.
E)   all of the above.

Question 14

In the grid method of bloodstain documentation, a grid of squares of known dimensions is created over an entire pattern in order to:

Accepted Answer

A)   prevent contamination of the bloodstains.
B)   collect bloodstains for delivery to the laboratory.
C)   show the relative sizes of bloodstains in photographs.
D)   all of the above.
E)   none of the above.

Exam 10: Bloodstain Pattern Analysis

The pressure of the pumping of oxygenated blood out of an injury causes bright red-colored blood to spurt out and form a(n) :

Correct Answer
verified

If a murder victim's blood is found in the muzzle of a firearm:

Correct Answer
verified

Which weapon would create cast-off patterns consisting of small droplets in a linear pattern?

Correct Answer
verified

The ________________ of a bloodstain pattern in a three-dimensional space illustrates the position of the victim or suspect when the stain-producing event took place.

Correct Answer
verified

In the grid method of bloodstain documentation, a grid of squares of known dimensions is created over an entire pattern in order to:

Correct Answer
verified

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:

Correct Answer
verified

How can an investigator determine the area of convergence and an area of impact for a given blood pattern?

Correct Answer
Answered by ExamLex AI
An investigator can determine the area o...
View Answer

A blood droplet deposited at an angle of impact of about 90º (directly vertical to the surface) will:

Correct Answer
verified

Explain how the texture of a surface, directionality and the angle of impact can impact the shape of the individual bloodstains.

Correct Answer
Answered by ExamLex AI
The texture of a surface, directionality...
View Answer

Crime scene reconstructions have the best chance of accuracy if:

Correct Answer
verified

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:

Correct Answer
verified

The deposition of backward spatter produced by a gunshot wound is determined by:

Correct Answer
verified

The pointed end of a bloodstain always faces:

Correct Answer
verified

Diagram and describe the three types of impact spatter and how these patterns can be used at a crime scene.

Correct Answer
Answered by ExamLex AI
Impact spatter refers to the bloodstain ...
View Answer

Exam 10: Bloodstain Pattern Analysis

The pressure of the pumping of oxygenated blood out of an injury causes bright red-colored blood to spurt out and form a(n) :

Correct AnswerverifiedShow Answer

If a murder victim's blood is found in the muzzle of a firearm:

Correct AnswerverifiedShow Answer

Which weapon would create cast-off patterns consisting of small droplets in a linear pattern?

Correct AnswerverifiedShow Answer

The ________________ of a bloodstain pattern in a three-dimensional space illustrates the position of the victim or suspect when the stain-producing event took place.

Correct AnswerverifiedShow Answer

In the grid method of bloodstain documentation, a grid of squares of known dimensions is created over an entire pattern in order to:

Correct AnswerverifiedShow Answer

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:

Correct AnswerverifiedShow Answer

How can an investigator determine the area of convergence and an area of impact for a given blood pattern?

Correct AnswerAnswered by ExamLex AIAn investigator can determine the area o...View AnswerShow Answer

A blood droplet deposited at an angle of impact of about 90º (directly vertical to the surface) will:

Correct AnswerverifiedShow Answer

Explain how the texture of a surface, directionality and the angle of impact can impact the shape of the individual bloodstains.

Correct AnswerAnswered by ExamLex AIThe texture of a surface, directionality...View AnswerShow Answer

Crime scene reconstructions have the best chance of accuracy if:

Correct AnswerverifiedShow Answer

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:

Correct AnswerverifiedShow Answer

The deposition of backward spatter produced by a gunshot wound is determined by:

Correct AnswerverifiedShow Answer

The pointed end of a bloodstain always faces:

Correct AnswerverifiedShow Answer

Diagram and describe the three types of impact spatter and how these patterns can be used at a crime scene.

Correct AnswerAnswered by ExamLex AIImpact spatter refers to the bloodstain ...View AnswerShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
Answered by ExamLex AI
An investigator can determine the area o...
View Answer

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
The texture of a surface, directionality...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
Impact spatter refers to the bloodstain ...
View Answer