Trace Evidence - GSR Flashcards
1
Q
What is GSR?
A
Residue from the primer or propellant when a firearm is shot
2
Q
what are the 3 Inorganic residues in GSR
A
Lead, Barium, Antimony
3
Q
GSR is ______
A
MicroScopic
4
Q
GSR is also very _____ as shown in the case of ___ _______
A
Controversial
Barry George
5
Q
There is a _______ chance of recovering any residue on a suspects hands _ to _ hours after the shot has been fired
A
Little
2 to 3
6
Q
after what period is recovery of GSR on face and hair unlikely?
A
10-12
7
Q
How long can GSR remain on a suspects clothing?
A
5 days
8
Q
What should you never do with the victim and suspects clothing in regards to GSR
A
Package them in the same room
9
Q
What bags should you use to package GSR
A
Nylon Bags
