Blood & DNA
Drugs
Crime Scene
Fingerprints
Instruments
100
Your blood type is determined by these, which you inherit from your parents.
What is genes?
100
Drugs that are taken to make one feel more energetic, strong or awake are called what?
What are stimulants?
100
What is the chain of custody?
Documented or recorded transfer or movement of evidence. It must be recorded each time an investigator or person comes in contact with the evidence.
100
The three main types of fingerprints are ...
What is arches, loops, and whorls?
100
What type of microscope is used when analyzing fibers?
A comparison microscope
200
What are the four DNA code letters and what do they stand for?
A adenine C cytosine T thymine G guanine
200
What do opiates do to the body?
Relieve pain, depresses nervous system
200
What is the principle termed to describe that when a person comes in contact with an object or person, a cross transfer occurs?
What is the locard's exchange principle?
200
Physical Developer involves superglue. (True or False)
False, silver nitrate based liquid reagent
200
What is the most useful method of organic analysis? and why?
IR gives a fingerprint of substance
300
What is the most useful part of hair when it comes to DNA analysis?
Follicular tag
300
What is the legal blood alcohol limit for driving a commercial vehicle?
0.04%
300
What are class vs. individual characteristics of physical evidence? Give example of each
Class - characteristics associated to group, limiting population, but cannot determine single source from group (paint chip) Individual - can be connected to single source with high degree of certainty (fingerprints)
300
What type of print is used for the FBI system of classifying prints?
What is the whorl?
300
If the total magnification of a microscope is 400x and the eyepiece lens has a magnification of 20x, what is the magnification of the objective lens?
20x
400
What is the type of spray pattern at speeds of 5-25 ft/s and blood droplets with 1-3 mm?
Medium velocity spatter
400
What Schedule drug has a high potential for abuse but is currently accepted for medical use in the U.S.?
Schedule II
400
What is the type of fold used to collect paint and powder substances at a crime scene
What is the druggist fold?
400
What landmark case did the Bertillion system fail and the fingerprints need to be used?
What is West vs. West?
400
In thin layer chromatography, what is the stationary phase and mobile phase?
stationary phase - solid glass plate with silica gel or aluminum oxide mobile phase - water or other solvent
500
What is the equation to calculate the angle of impact of a blood drop?
Sin A = (width/length) - do not include tail
500
What are four factors that effect alcohol absorption?
-time taken to consume drink -alcohol content in drink -amount consumed -food present in stomach -person's weight
500
When is a search and seizure justified without a warrant? (give 3)
When emergency To prevent destruction of evidence If person is under arrest If officer has consent from party
500
Name the four types of whorls
What is plain whorl, central pocket whorl, double loop, and accidental?
500
DAILY DOUBLE - GROUP ROUND What are four types of color tests for drugs and what do they detect?
Marquis - heroin and morphine (purple), amphetamines (orange) Dillie-Koppanyi - barbiturates - violet Duquenois-Levine - marijuana (purple) Van-Urk - LSD blue/purple Scott (NiK) - cocaine (blue)
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