Question 1

Describe the various techniques that are used to rifle a barrel.

Accepted Answer

Rifling a barrel is the process of creat

Question 2

The "dermal nitrate test" has fallen into disfavor because of its lack of specificity. Which of the following common materials does NOT give a misleading positive reaction to this test?

Accepted Answer

A)  chocolate 
B)  fertilizers 
C)  cosmetics 
D)  tobacco 
E)  urine 
A)  chocolate 
B)  fertilizers 
C)  cosmetics 
D)  tobacco 
E)  urine

Question 3

Which technique of detecting GSR holds the most promise for the immediate future?

Accepted Answer

A)  SEM primer residue detection 
B)  hand swabs 
C)  neutron activation analysis 
D)  dermal nitrate test 
E)  infrared spectroscopy 
A)  SEM primer residue detection 
B)  hand swabs 
C)  neutron activation analysis 
D)  dermal nitrate test 
E)  infrared spectroscopy

Question 4

Which of the following is not expected to show any evidential marks or impressions?

Accepted Answer

A)  A shotgun pellet 
B)  A cartridge casing fired from a shotgun 
C)  A fired bullet 
D)  A cartridge casing fired from a handgun 
E)  All of the above will show markings 
A)  A shotgun pellet 
B)  A cartridge casing fired from a shotgun 
C)  A fired bullet 
D)  A cartridge casing fired from a handgun 
E)  All of the above will show markings

Question 5

Tools and tool marks are often found at burglary scenes and can be useful evidence. Proper evidence collection by the field investigator would include:

Accepted Answer

A)  making test marks with the suspected tool onto a soft metal surface at the crime scene. 
B)  taking a photograph and cast of the marks, if necessary. 
C)  reporting whether a tool found at the scene fit into the tool marks. 
D)  immediately dusting the tool for fingerprints. 
E)  packing of tool and tool mark evidence together so that the crime lab personnel knows they are thought to be a matched set. 
A)  making test marks with the suspected tool onto a soft metal surface at the crime scene. 
B)  taking a photograph and cast of the marks, if necessary. 
C)  reporting whether a tool found at the scene fit into the tool marks. 
D)  immediately dusting the tool for fingerprints. 
E)  packing of tool and tool mark evidence together so that the crime lab personnel knows they are thought to be a matched set.

Question 6

Which of the following results is not possible from a laboratory examination of firearm evidence?

Accepted Answer

A)  Determining how far from the victim the weapon was held. 
B)  Determining that two or more cartridge cases were fired from the same weapon. 
C)  Identifying a bullet as having been combined with a particular shell prior to being discharged. 
D)  Restoring serial numbers ground off the gun. 
E)  All of the above can be determined from a laboratory examination of firearm evidence. 
A)  Determining how far from the victim the weapon was held. 
B)  Determining that two or more cartridge cases were fired from the same weapon. 
C)  Identifying a bullet as having been combined with a particular shell prior to being discharged. 
D)  Restoring serial numbers ground off the gun. 
E)  All of the above can be determined from a laboratory examination of firearm evidence.

Question 7

A monochromator can consist of a:

Accepted Answer

A)  diffraction grating and slit. 
B)  prism and slit. 
C)  ruler 
D)  both A and B 
E)  neither A nor B 
A)  diffraction grating and slit. 
B)  prism and slit. 
C)  ruler 
D)  both A and B 
E)  neither A nor B

Question 8

The likelihood of detecting GSR on swabs taken from living subjects more than six hours after a firing has occurred is ________ the likelihood of detecting GSR within two hours of a firing.

Accepted Answer

A)  greater than 
B)  less than 
C)  the same as 
A)  greater than 
B)  less than 
C)  the same as

Question 9

A technique applicable for determining whether an individual has recently fired a weapon is:

Accepted Answer

A)  the scanning electron microscope. 
B)  atomic absorption analysis. 
C)  neutron activation analysis. 
D)  all of the above 
E)  none of the above 
A)  the scanning electron microscope. 
B)  atomic absorption analysis. 
C)  neutron activation analysis. 
D)  all of the above 
E)  none of the above

Question 10

Generally speaking, the amount of gun powder particles found around a bullet hole is ________ to the distance from which the weapon was fired.

Accepted Answer

A)  indirectly related 
B)  directly related 
C)  not related 
A)  indirectly related 
B)  directly related 
C)  not related

Question 11

When a gun is recovered from an underwater location, it should be:

Accepted Answer

A)  taken to a certified gunsmith for restoration before testing can begin. 
B)  placed in an air-tight plastic bag. 
C)  cleaned and dried. 
D)  transported to the crime lab in a container with enough of the same water necessary to keep it submerged. 
E)  submitted to crime lab in a paper bag. 
A)  taken to a certified gunsmith for restoration before testing can begin. 
B)  placed in an air-tight plastic bag. 
C)  cleaned and dried. 
D)  transported to the crime lab in a container with enough of the same water necessary to keep it submerged. 
E)  submitted to crime lab in a paper bag.

Question 12

Explain how a comparison microscope is used to compare bullets and cartridge cases.

Accepted Answer

A comparison microscope is a tool used b

Question 13

When an etching agent is applied to a metal surface in order to restore a removed serial number, the stamped area will dissolve at ________ as the unstamped area.

Accepted Answer

A)  a slower rate 
B)  a greater rate 
C)  the same rate 
A)  a slower rate 
B)  a greater rate 
C)  the same rate

Question 14

Name and describe the test(s) that investigators use to determine whether an individual has fired a weapon.

Accepted Answer

Investigators use several tests to deter

Question 15

In atomic absorption chromatography, the amount of light absorbed is ________ to the concentration of the element in the test sample.

Accepted Answer

A)  is not related 
B)  indirectly related 
C)  directly related 
A)  is not related 
B)  indirectly related 
C)  directly related

Question 16

List and diagram the class characteristics and individual characteristics that are found on a spent bullet.

Accepted Answer

Spent bullets can provide valuable foren

Question 17

Which of the following procedures is not to be followed in collecting and packaging firearms evidence at the crime scene?

Accepted Answer

A)  Unloading a weapon before shipping it to the crime laboratory. 
B)  Avoiding inserting a stick or pencil into the barrel of a weapon. 
C)  Marking an empty cartridge case on its base for identification. 
D)  Marking a fired bullet on its base for identification. 
E)  Making accurate measurements of exact locations where cartridge cases are found. 
A)  Unloading a weapon before shipping it to the crime laboratory. 
B)  Avoiding inserting a stick or pencil into the barrel of a weapon. 
C)  Marking an empty cartridge case on its base for identification. 
D)  Marking a fired bullet on its base for identification. 
E)  Making accurate measurements of exact locations where cartridge cases are found.

Question 18

Distinctive markings of shells and cartridges can be made by the:

Accepted Answer

A)  firing pin. 
B)  extractor and ejector mechanism. 
C)  magazine. 
D)  breech lock. 
E)  all of the above 
A)  firing pin. 
B)  extractor and ejector mechanism. 
C)  magazine. 
D)  breech lock. 
E)  all of the above

Question 19

The presence of gunpowder residues on a garment whose color conceals the existence of the residues is best revealed by

Accepted Answer

A)  infrared spectrophotometry. 
B)  color photography. 
C)  gas chromatography. 
D)  infrared photography. 
E)  ultraviolet photography. 
A)  infrared spectrophotometry. 
B)  color photography. 
C)  gas chromatography. 
D)  infrared photography. 
E)  ultraviolet photography.

Describe the various techniques that are used to rifle a barrel.

The "dermal nitrate test" has fallen into disfavor because of its lack of specificity. Which of the following common materials does NOT give a misleading positive reaction to this test?

Which technique of detecting GSR holds the most promise for the immediate future?

Which of the following is not expected to show any evidential marks or impressions?

Tools and tool marks are often found at burglary scenes and can be useful evidence. Proper evidence collection by the field investigator would include:

Which of the following results is not possible from a laboratory examination of firearm evidence?

A monochromator can consist of a:

The likelihood of detecting GSR on swabs taken from living subjects more than six hours after a firing has occurred is ________ the likelihood of detecting GSR within two hours of a firing.

A technique applicable for determining whether an individual has recently fired a weapon is:

Generally speaking, the amount of gun powder particles found around a bullet hole is ________ to the distance from which the weapon was fired.

When a gun is recovered from an underwater location, it should be:

Explain how a comparison microscope is used to compare bullets and cartridge cases.

When an etching agent is applied to a metal surface in order to restore a removed serial number, the stamped area will dissolve at ________ as the unstamped area.

Name and describe the test(s) that investigators use to determine whether an individual has fired a weapon.

In atomic absorption chromatography, the amount of light absorbed is ________ to the concentration of the element in the test sample.

List and diagram the class characteristics and individual characteristics that are found on a spent bullet.

Which of the following procedures is not to be followed in collecting and packaging firearms evidence at the crime scene?

Distinctive markings of shells and cartridges can be made by the:

The presence of gunpowder residues on a garment whose color conceals the existence of the residues is best revealed by

Introduction

Securing and Searching the Crime Scene

Recording the Crime Scene

Collection of Crime-Scene Evidence

Physical Evidence

Death Investigation

Crime-Scene Reconstruction

Fingerprints

Firearms, Toolmarks, and Other Impressions

Bloodstain Pattern Analysis

Drugs

Forensic Toxicology

Trace Evidence I: Hairs and Fibers

Trace Evidence Ii: Paint, Glass, and Soil

Biological Stain Analysis: DNA

Document Examination

Computer Forensics

Filters

Exam 16: Forensic Aspects of Fire and Explosion Investigation

Describe the various techniques that are used to rifle a barrel.

The "dermal nitrate test" has fallen into disfavor because of its lack of specificity. Which of the following common materials does NOT give a misleading positive reaction to this test?

Which technique of detecting GSR holds the most promise for the immediate future?

Which of the following is not expected to show any evidential marks or impressions?

Tools and tool marks are often found at burglary scenes and can be useful evidence. Proper evidence collection by the field investigator would include:

Which of the following results is not possible from a laboratory examination of firearm evidence?

A monochromator can consist of a:

The likelihood of detecting GSR on swabs taken from living subjects more than six hours after a firing has occurred is ________ the likelihood of detecting GSR within two hours of a firing.

A technique applicable for determining whether an individual has recently fired a weapon is:

Generally speaking, the amount of gun powder particles found around a bullet hole is ________ to the distance from which the weapon was fired.

When a gun is recovered from an underwater location, it should be:

Explain how a comparison microscope is used to compare bullets and cartridge cases.

When an etching agent is applied to a metal surface in order to restore a removed serial number, the stamped area will dissolve at ________ as the unstamped area.

Name and describe the test(s) that investigators use to determine whether an individual has fired a weapon.

In atomic absorption chromatography, the amount of light absorbed is ________ to the concentration of the element in the test sample.

List and diagram the class characteristics and individual characteristics that are found on a spent bullet.

Which of the following procedures is not to be followed in collecting and packaging firearms evidence at the crime scene?

Distinctive markings of shells and cartridges can be made by the:

The presence of gunpowder residues on a garment whose color conceals the existence of the residues is best revealed by

Introduction

Securing and Searching the Crime Scene

Recording the Crime Scene

Collection of Crime-Scene Evidence

Physical Evidence

Death Investigation

Crime-Scene Reconstruction

Fingerprints

Firearms, Toolmarks, and Other Impressions

Bloodstain Pattern Analysis

Drugs

Forensic Toxicology

Trace Evidence I: Hairs and Fibers

Trace Evidence Ii: Paint, Glass, and Soil

Biological Stain Analysis: DNA

Document Examination

Computer Forensics

Filters