- Description
CJS 215 Wk 3 Concept Check
- Question 1
Who devised the fingerprint classification system used in most English-speaking countries?
Henry
Vucetich
Herschel
Fauld
- Question 2
What are the most commonly encountered ridge characteristics (used by AFIS)?
Ridge ending and island
Ridge crossing and short ridge
Bifurcation and ridge ending
Bifurcation and trifurcation
- Question 3
What is the minimum number of ridge characteristics necessary before two fingerprints can be identified as the same?
10
12
16
No minimum exists
- Question 4
To permanently alter his or her fingerprint and produce scars, a person must damage what?
Minutiae
Ridges
Epidermis
Dermal papillae
- Question 5
What is AFIS?
Computerized system for storing and retrieving fingerprint records
Method used to determine the age of a latent print
Computer system programmed to analyze hair
Assay technique used to identify drugs
- Question 6
Which of the following is a chemical method used for developing prints on nonporous surfaces?
Physical developer
Ninhydrin
Fuming with cyanoacrylate
DFO
- Question 7
What are the three most common types of handguns?
Rifles, pistols, and revolvers
Single-shot, rifles, and pistols
Single-shot, revolvers, and semi-automatics
Single-shot, rifles, and semi-automatics
- Question 8
The comparison of two bullets is possible with a comparison microscope. Such a comparison is made difficult by what fact?
Lands and grooves are subject to wear and tear, and hence striations markings are susceptible to continuing change.
Often, evidence bullets are distorted on impact and only small areas are found with intact markings.
The presence of grit and rust can to some degree alter the markings on bullets fired through the same barrel.
All of the above
- Question 9
What are IBISes?
Trade groups of firearms manufacturers
Safety education courses for firearm use
Automated screening tools for firearm evidence
Lists of licensed gun dealers
- Question 10
The likelihood of detecting gunshot residues on swabs taken from living subjects more than six hours after a firing has occurred is _____ the likelihood of detecting gunshot residues within two hours of a firing.
The same as
Less than
Greater than
- Question 11
Which technique of detecting gunshot residues holds the most promise for the immediate future?
Infrared spectroscopy
Scanning electron microscope (SEM) testing
Neutron activation analysis
Dermal nitrate test
- Question 12
After a gun is recovered from an underwater location, it should be:
Transported to the crime lab in a container with enough of the same water necessary to keep it submerged.
Placed in an airtight plastic bag.
Cleaned and dried.
Submitted to the crime lab in a paper bag.
- Question 13
Which physical symptom is part of abstinence syndrome?
Body chills
Stomach cramps and vomiting
Convulsions
All of the above
- Question 14
Scott Test solutions can indicate the presence of what drug?
Marijuana
Cocaine
Codeine
Librium
- Question 15
Which chromatographic process would be least likely to be utilized in the crime lab?
GC
TLC
GC/MS
Paper chromatography