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> tracing. What types of tests do they use? Do they test the
> chemicals in the bullet, and shell (if found), to trace
> the weapon
> to certain manufacturers? I have heard that they use the pattern
> of scratches and disfigurations on both the bullet and the
> shell to
> trace it to a certain weapon, but that the weapon must be
> found in
> order to compare the bullet found at the scene to a bullet fired
> from the suspected weapon. Is this true? Also, does the testing
While not being affiliated with a law agency I can tell you that the marks on the bullets are the primary way that weapons are identified. These marks com from the riflings in the barrel of the weapon (they provide stability for the bullet in flight) and are unique to each weapon. It is important to find the weapon for the comparison to confirm that a particular weapon was used. Some information can be gathered from the bullet. the caliber of the weapon is the most important but the bullet weight and gener
al shape characteristics can be determined as well. I don't believe that other information that can be obtained is as important as these in that many of the components of the round cannot be traced as easily. Remember I am not an expert but am familiar with guns in general. If there is anything else you would like please feel free to ask and I'll see if I can get you answers. I know many police officers in my area (I'm a vol. fire-fighter) and could probably come up with some more if you need it.
