Three forensics questions.
1. Does anyone have an approximate number of how many different models of semi-auto pistols have been chambered in 9mm Parabellum?
2. Can a crime lab ID the make and model of a semi-auto pistol that fired a cartridge if all they have to study is a spent casing?
3. How well does the test for powder residue work? How long after a shooting can it be done and does washing one's hands defeat the test?
2. Can a crime lab ID the make and model of a semi-auto pistol that fired a cartridge if all they have to study is a spent casing?
3. How well does the test for powder residue work? How long after a shooting can it be done and does washing one's hands defeat the test?
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Robat,
I think we are speaking of two different things. Some States, like here in NY, have recently passed a law whereby Gun dealers must send to the State crime Labs a spent cartridge from every handgun they sell. This was not a law back in the 70's, but the forensics art of discovering of what cartridge came from what gun was.
Trinity +++0 -
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Is she supposed to be cute?[xx(]
Trinity +++0 -
Gotcha Trinity. 0 -
quote:Originally posted by SaxonPig
My wife, the law school student, is partricupating in moot court this week and the case involves a murder where an unknown 9mm handgun was used. She was looking for some info on how many suspect guns there might be (all I could tell her was that hundreds and hundreds of models in that caliber have been made), if the murder weapon make and model could be IDed from only a shell casing, and how long a test for powder residue could be administered.
If I were plotting a murder I certainly wouldn't talk about.
And I don't have a Ph.D.
Ah, the old "moot court/mock trial" excuse...0 -
Hmmm...First they's folks wantin' to teach dancin' lessons...and now Oz wants ta know 'bout forensic evidence...Hmmm... 0
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