Forensics C

18alia
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Re: Forensics C

Postby 18alia » Sun Jan 08, 2017 11:33 pm

Hi guys, does anyone have the results for reacting powders with NaOH? It's not on the wiki, and we don't have the resources to run the tests ourselves.

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Re: Forensics C

Postby Lumitailz » Mon Jan 09, 2017 4:04 am

18alia wrote:Hi guys, does anyone have the results for reacting powders with NaOH? It's not on the wiki, and we don't have the resources to run the tests ourselves.

I'm pretty sure it precipitates with all the calcium and magnesium salts, and reacts with ammonium salts to form NH3

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Re: Forensics C

Postby sciduck » Sun Jan 15, 2017 4:15 pm

What is the percentage distribution for fingerprints? Some test keys say 70% loops, 25% whorls, and 5% arches while others say 65% loops, 30% whorls, and 5% arches.
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Re: Forensics C

Postby Magikarpmaster629 » Sun Jan 15, 2017 5:47 pm

sciduck wrote:What is the percentage distribution for fingerprints? Some test keys say 70% loops, 25% whorls, and 5% arches while others say 65% loops, 30% whorls, and 5% arches.

I see the first one more often I think
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