LIsa Black
Cape Coral, FL
Female, 49
I spent the five happiest years of my life in a morgue. As a forensic scientist in the Cleveland coroner’s office I analyzed gunshot residue on hands and clothing, hairs, fibers, paint, glass, DNA, blood and many other forms of trace evidence, as well as crime scenes. Now I'm a certified latent print examiner and CSI for a police department in Florida. I also write a series of forensic suspense novels, turning the day job into fiction. My books have been translated into six languages.
Possibly, I suppose. If they were swabbed thoroughly and the swabs picked up a few skin cells, then it would be within the realm of possibility.
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Sorry, the link just took me to the sign-in page.
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Physical evidence was always extremely important. What has changed with technology is what types of evidence are more commonly examined. It used to be hairs and pollen and now it's touch DNA and cell phones.
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I used to analyze dried paint with an FTIR, which I believe would detect lead, but as to what would be better I really don’t know. Sorry I can’t be more help.
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Emergency Room Manager
What's the best time to arrive at an ER to avoid waits?
CBP Officer
Do you catch less marijuana at the border now that it's being decriminalized in some States?
Help Desk Technician
What's the closest you've come to "losing it" on someone you were helping?
Once in a great while something will catch me when I’m not expecting it. But very rarely.
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They’re all shocking, in their way, But there hasn’t been one in particular that bowled me over.
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I'm not sure what you mean: a) how long after a print is left will ninhydrin still detect it, in which case I can say from my own experiment that there's little rhyme or reason to this, sometimes older prints develop better than newer ones or vice versa, or b) how long does a print developed with ninhydrin last, and the answer to that is that ninhydrin is a dark purple dye, so it is permanent, though it will continue to develop so that the entire page may eventually turn purple so we use a fixative chemical on the now-visible print so that will stop the ninhydrin from darkening the paper further. I hope that helps!
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