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FREE AND STUDY GAMES ABOUT BLOOD EVIDENCE EXAM
QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -53 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Given blood spstter patterns, it is possible to determine the ____ the blood was traveling, the ___ __ _____ and the ___ __ ____ of the blood.
Answer:
Direction, angle of impact, point of origin Question 2: Drops form ___ when hitting a surface due to the cohesion properties of blood.
Answer:
circles
Question 3: What sets the tale?
Answer:
Tail Question 4: Three questions that must be answered by the forensic investigator when suspected blood stains are found at a crime scene
Answer:
1) Is it blood? (Benzidine Test, ***Kastle-Myer test, ***Luminol Test
2) Is it Human blood? (precipitin Test) 3)Can it be associated with an individual? (***DNA Profiling)
Question 5: 30 degrees
Answer:
A long oval tearlike build
Question 6: higher height
Answer:
faster on contact with surface = wider drop Question 7: Once AOC is determined, a quick trigonometry calculation can yield the _____
Answer:
Point of origin
Question 8: Blood spatter angle
Answer:
The angle at which a blood drop hits a surface can help determine where a person was when they lost blood.
Question 9: White Blood Cells %
Answer:
4%
Question 10: Plasma %
Answer:
55% Question 11: When a wound is inflicted and blood leaves the body, a blood-spatter ____ may be created
Answer:
Pattern
Question 12: Medium Velocity
Answer:
A spatter like a blunt instrument swung by hand
Question 13: How to determine point of origin
Answer:
Investigators use a protractor to pull the strings out to the appropriate angle.
Question 14: O positive
O negative A positive A negative B positive B negative AB positive AB negative
Answer:
35% 13% 30% 8% 2% 2% 1% Question 15: This can be determined by using ___ that are portable enough to be used right at the scene.
Answer:
Tests
Question 16: Blood Typing
Answer:
-Blood typing is often used to eliminatae suspects -It is cheaper and less time consuming that DNA profiling -There are four blood types (every living person belongs to one of the 4) -Blood typing is considered class evidence
Question 17: High velocity
Answer:
A mistlike spatter resulted from a gunshot
Question 18: Blood always travels in the direction of the applied ___
Answer:
Force
Question 19: Low Velocity
Answer:
Passive drops, a punch or stab Question 20: Investigators have been using blood stain interpretation as a means to re-create crime scenes since ____
Answer:
1939
Question 21: Step 1
Step 2 Step 3 Step 4
Answer:
Find good blood spatter String the blood Determine the Angle of Impact
Question 22: Serology
Answer:
Term used to describe a broad range of laboratory tests using reactions of blood serum and other bodily fluids.
Question 23: The faster the blood droplet is moving on contact with a surface.
Answer:
the more it will spread out.
Question 24: Size depends on the ___ of the blood drop
Answer:
speed
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