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.
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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I suppose that’s theoretically possible, but I wouldn’t think it likely. The saliva would sink into the paper of the money quickly, and then when swabbing the person’s skin you’d have to happen on the exact spot where that tiny bit of saliva transferred to.
I hope that helps!
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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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For homework interview questions, please email me at lisa-black@live.com.
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Help Desk Technician
Does it get aggravating answering people's dumb questions all day long?
Poet
Does being a professional poet pay the bills?
Police Officer
Can I become a cop if I have misdemeanors on my record?
Sorry, the link just took me to the sign-in page.
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That's an awfully broad question. What do you think are the physical and chemical properties? Blood has hemoglobin. Hair grows out of your head. Footprints are impressions in the dirt. I'm pretty sure you could write a good answer to this question yourself.
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Medicine. Forensic pathologists are doctors and go to medical school. So I would suggest you take every science course you can, especially biological sciences. Best of luck to you!
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