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.
Someone trained in accident reconstruction might be able to do so, but not having marks on the road makes it more difficult.
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"Unreliability of a science" is pretty a broad swipe, so I don't have any idea what you're referring to. Any line of work--government, plumbing, brain surgery--can be unreliable if the people doing the work are undertrained,overeager, arrogant or lazy.
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Yes, that's what we do at our agency, depending on the analysis required. We can process for latent prints and analyze them and also cell phones and computers. For things like DNA analysis and bullet comparison, we send that to the state lab. Every agency is different depending upon available personnel and equipment.
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I'm so sorry but I wouldn't have any idea since I've never worked in toxicology. And since my agency doesn't do it either I don't have anyone to ask.
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First question: My guess is (simply based on experience) is there would still be sticky blood at the head wound enough to smear on stuff, perhaps. It wouldn't be spurting or perhaps even dripping at that point because it should have begun to coagulate. Provided it didn't dry entirely, so the body would need to be in a place that's neither too dry nor too hot and certainly not both. Cool and humid would keep it from drying. The killer might bash the head but there could be a lack of blood spatter or flowing/pooling blood from the wound, since the blood won't be flowing as it would be if the person had still been alive. Also the problem with moving the body is lividity where the blood pools at the lower spots of the body due to gravity (like on the back if the person is lying supine. After several hours it should be fairly noticeable and then if you move the body, the lividity pattern doesn't quite match the position.
Hope that helps!
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Temporarily, with sandpaper or chemicals, but they will grow back in the same pattern.
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Not often. Since a glove itself isn't secreting sweat and oils, there's really nothing for it to make a print with until it gets a little dirty or if the surface it's touching is a little dirty.They can be wiped off as easily as any other print.
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