Primary and secondary markings over metal bullet help in?
Markings on the bullet are used to identify the gun used. Bullet finger printing -Study of comparison of markings on crime bullet & test bullet under comparison microscope Primary Marking/Class Characteristics: Produced by rifling groovesQ * Primary markings are used to identify the make & model of the guns involved. Secondary markings or individual/accidental characteristics Produced by irregularities by manufacturing process are different for each gun produced by same manufacturer. They are useful in identifying the specific gun which was fired.
Identification of weapon
Identification of wound
Identification of person
Severity of tissue damage
Ballistics