3. SHOT GUN INJURY
Exit Wound -
• Is usually not present and may be larger
( than entry wound ) with everted edges.
• There may be evidence of individual pellets
having exited separately.
4. RangeRange RifledRifled Smooth boredSmooth bored
ContacContac
tt
Scorch X blackXScorch X blackX
tattoo Xtattoo X
muzzle & CO Ymuzzle & CO Y
Scorch X blackX tattooScorch X blackX tattoo
XX
muzzle & CO Ymuzzle & CO Y
CloseClose Scorch,blac,tatoScorch,blac,tato
abrasion &abrasion &
grease collar Ygrease collar Y
Scorch, black,tattoin YScorch, black,tattoin Y
Wad YWad Y
Abra,gr collar XAbra,gr collar X
NearNear Scorch XScorch X
black,tattoing,black,tattoing,
abrasion& greaseabrasion& grease
collar Ycollar Y
Scorch XScorch X
Shots disperseShots disperse
black,tattoing Yblack,tattoing Y
Abra,gr collar XAbra,gr collar X
DistanDistan
tt
Scorch, black XScorch, black X Scorch, black tatto XScorch, black tatto X
Shots disperseShots disperse
5. IDENTIFICATION OF FIREARMS
• The fire arm
‘Bullet Finger printing’
• The comparison microscope
-‘ Crime bullet ’ and ‘ Test bullet ’
6. DERMAL NITRATE TEST
( PARAFFIN TEST )
It is a method to find out whether a suspect
discharged a firearm recently, or not.
PRINCIPLE:
• Whenever a firearm is discharged, some gun powder
residue always contaminates the hand that holds the
weapon.
• The tests detects the presence of nitrates & nitrites
in the powder residue
7. DERMAL NITRATE TEST
( PARAFFIN TEST )
It is a method to find out whether a suspect
discharged a firearm recently, or not.
PRINCIPLE:
• Whenever a firearm is discharged, some gun powder
residue always contaminates the hand that holds the
weapon.
• The tests detects the presence of nitrates & nitrites
in the powder residue
