Firearms and tool

Question 1

Charactersitcs

Answer 1

Class
More general
Belonging to a class or group

Measurable features of a
specimen which indicate a restricted group
source.

indivdual:

More general, belonging to a group

Specific details help define uniqueness

Marks produced by the random
imperfections or irregularities of tool surfaces.
These random imperfections or irregularities

Question 2

MARKING ON METAL VS SOFTER

Answer 2

when marks are made on a metal surface, they are
not subject to change in the same way as marks on
a softer surface

Question 3

The difference between hand-gun and long gun

Answer 3

handgun- designed to be held and fired using one hand

long gun- designed to be held with two hands and fired
from the shoulder

Question 4

Difference between semiautomatic pistol and revolver

Answer 4

Semiautomatic pistol
one round is fired each time the trigger is
pulled

ammunition is fed through a magazine

cartridge case is ejected and a new cartridge
is seated into the chamber
Revolver

ammunition is loaded in the cylinder

cartridge case remains in the cylinder and as
the cylinder rotates, the next cartridge is
ready to be fired

cartridge cases must be manually ejectet

Question 5

Shotgun vs Automatic riflie

Answer 5

Shotgun
manufactured for the purpose of hunting

various types of ammunition based on
intended hunting target

typically contains a smooth bore

manual reload after two round

Automatic Rifle
multiple rounds can be fired as long as the
trigger is depressed

cartridges are held in a magazine or drum

cartridge cases are ejected out automaticaly

Question 6

Tool marks

Answer 6

considered to be an impression, cut, gouge, or abrasion caused by a tool
coming into contact with another object

tool omes into contact with another surface, there is potential
for those unique characteristics to leave an impression behind

Question 7

Sliding tool marks vs cutting tool marks

Answer 7

Sliding tool marks

tool slides along a surface

CUTTING TOOL MARKS
combination of compression and
sliding tool marks

Question 8

Forensic Examination

Answer 8

comparison microscope
allows simultaneous viewing of
two items side by side

Question 9

mikrosi

Answer 9

silicone casting material used
to create a replica

Question 10

Why is bore useful

Answer 10

bore will provide the
ammunition with a more
stable trajectory