FORS 4364 UNIT D

Flies typically begin laying eggs on a body within how many minutes after death?

20 minutes

Forensic pathologist normally categorize injuries based on which mechanisms?

Asphyxia, gunshot trauma, sharp force trauma, and blunt force trauma

Blue-green discoloration in the lower abdomen during decomposition is commonly due to

Bacteria found in the gastrointestinal tract of the victim

The "wake effect" refers to small linear defects that extend out and away from the bullet hole. These lines as they extend out point toward the direction of travel.

False

Firearms examiners look for evidence of three types of characteristics on the bullet or bullet fragment. Which of these is not one of the types of characteristics?

Firearm examiners are looking for all these of are types of characteristics.

A wound that is longer than it is deep would considered a (n)?

Incised wound

Which of the following test can only be performed at the crime lab?

SEM

The best circumstances for the crime scene technician when evaluating bullet trajectories is when:

There are multiple corresponding defects in solid surfaces and an associated penetrating or perforating wound.

How does the technician identify the angle of impact?

Using the relationships between the defect and the right triangle created by the bullet path and the target

What is unintentional discharge of a firearm?

When the operator pulls the trigger without the specific intent of doing so at that moment

During reexamination of the body, what could be used to see trace evidence in the form of semem or spittle, any foreign fibers or hairs, and light bruises?

White light and ALS

Which of the following would be considered an early postmortem indicator?

algor mortis

___________ is the loss of body heat from the corpse.

algor mortis

An entomologist would be able to provide a postmortem interval with careful collection of

all of the above

Trajectory and shooting scene analysis is based on which area of study?

all of the above

What environmental conditions have direct effect on the rate of decomposition?

all of the above

When photographing the corpse at the morgue, what should be documented?

all of the above

When presented with a weapon, the question the firearms examiner tries to resolve is:

all of the above

Which of the following would be consider a blunt force injury?

all of the above

If a victim has their hyoid bone broken, this would be a result from what kind of trauma?

asphyxia

The tubular aspect of the firearm that directs the path of the projectile when fired from the firearm is the ________.

barrel

The __________ is the complete unit of unfired ammunition and is made up of a bullet and casing, with primers and propellant contained within.

cartridge

The subunit of the cartridge that holds the primer and propellant is the _________.

cartridge case

What is the category of muzzle range when the muzzle is in direct contact with the skin or pressed into the skin?

close or hard contact

With bullet defects in windshield glass it is more difficult to locate the entry and exit due to the _________ effect.

coning

Which of the following is NOT responsible for determining the time of death?

crime scene technician

Copper and lead tests are the only mechanism of verifying that a defect is caused by a bullet

false

If there were a female victim of sexual assault that needed to be examined for evidence, what kind of technician should examine her?

female technician

Terminal ballistics is usually conducted by the __________.

forensic pathologist

Internal ballistics is typically conducted by the _________.

forensics fire examiner

What produces ligature marks?

garroting

Which type of bullet injury can be described as the projectile leaving only a minor abrasion as it passes adjacent to the body?

grazing injury

What is the category of muzzle range when no conclusion can be drawn on muzzle distance?

indeterminate range

When the muzzle of the weapon is held far enough away from the body that heat and soot effects are eliminated is consider what range?

intermediate

What is the category of muzzle range when the muzzle is typically between 5 and 40 inches from the skin?

intermediate range

The area of ballistics that includes the examination of the firearm itself, which also includes ejection patterns, gunshot residue deposition, and other related aspects is _________.

internal ballistics

Exit wounds tend to be

irregular and asymmetrical

___________ involves settling of blood in the body due to gravity after blood circulation ends

livor mortis

___________ involves settling of blood in the body due to gravity after blood circulation ends.

livor mortis

What is the category of muzzle range when the muzzle is generally said to be not more than 5 inches from the skin?

near contact

If a victim was shot and there is no exit found, what kind of injury would it be considered?

penetrating

Which type of bullet defect can be described as the bullet entering a surface but not exiting?

penetrating effect

If a victim was shot and there an exit wound is found, what kind of injury would it be considered?

perforating

Which type of bullet defect can be described as the bullet entering a surface and exiting?

perforating defect

All of the following would be considered an observation of presumptive death EXCEPT?

respiration

Which type of bullet defect can be described as the bullet striking a surface and being deflected off of it at some angle without penetrating the surface completely?

ricochet or deflection

Which of the following is called the stiffening of the muscles in the deceased victim?

rigor mortis

A wound that is deeper than it is long would considered a (n)?

stab wound

Which of the following does not make up the fused particles found in primer residues?

sulfur