Ballistics
The approximate distance across the inside of a gun barrel (diameter)
Caliber
When do fingerprints develop
In the womb
The mm in a 9mm gun stands for
Millimeters
What does AFIS stand for
Automated Fingerprint Identification System
Why do we have ridges on our fingers
To help grip things
The study of guns and bullets
Forensic Ballistics
This pattern is when the friction ridges enter from one side of the finger and exit from the other side
Arch
If the gun shot residue is dense, the victim was shot in......
Close Range
What comes off our fingers that is left behind as a fingerprint
Oils and Sweat
A low density of gun shot residue means the victim was shot from.....
Long Range
Name 3 parts of a bullet
Bullet, Cartridge, Propellant, Rim, Primer
Prints that are invisible and must be revealed by a chemical or phsical means is called......
Latent
What consists of spiral grooves in the barrel of a gun or firearm
Rifling
These patterns are roughly circular, with the ridge lines going all the way around
Whorl
Name 5 people or occupations that have their prints stored in AFIS
Police, educators, finance field, criminals, background check for employment, military, etc.
They test the gun to compare striations in
Water
What three properties make fingerprints important in an investigation of
Unique, Consistent, Systematic Classification
What ignites the propellant
Primer
List the three types of prints
Plastic, Visible, Latent
What part of a gun holds all parts together
Cartridge Case
Investigators can tell the direction a bullet traveled by looking at the markings left behind
Entrance and Exit patterns
What are the subgroups of a loop
Ulnar and Radial
When gunshot residue found on a suspect an expert can say that it landed there in one of three ways....what are they
Suspect fired the gun, suspect was in close proximity, suspect came in contact with someone that had gun shot residue on them
What is used on porous surfaces such as paper
Ninhydrin
What is either of Mr. Mariano's kids names
Charlotte or Eli