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.
Sure, you can send it to: Lisa-black@live.com
I would fingerprint around all the damaged areas and the handles, and possibly collect a sample of paint in case the suspect’s keys were found (provided the state lab would do FTIR analysis on a non-violent case). And of course we’d check for any video cameras in the area that might cover the parking lot. And measure the width of the holes in the tires in case the suspect’s knife was located.
I thought phlebotomy was the drawing of blood, so I assume its mostly used in medicine. But one person in my office is actually trained in it so she can draw our blood when we need samples for positive controls.
That’s a good question that I’m afraid I can’t answer. I’m sure there is some way to determine the chemicals used in pepper spray. But this would be affected by a) how long does it remain on the skin before the skin absorbs it and b) most forensic chemistry labs are set up to detect illegal drugs in urine, blood or gastric contents. Identifying any kind of poison or other substance may require equipment or reference databases they don’t have.
Proving it’s the same batch of pepper spray may or may not be possible. I”m not personally involved in this kind of testing, but I can assure you it is not like television. We had a series of cases and wanted to determine the exact composition of drugs with percentages of fentanyl, heroin etc. Turned out while nearly every crime lab can determine if a drug is present, there were only one or two labs in the entire country we could find that could determine percentages, and they charged an arm and a leg.
Sorry I can’t be more help.
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That’s really a question for a pathologist, but apparently lividity develops before rigor, so it shoudn’t shift much after rigor has set in. However that can vary depending on temperature and physical/medical conditions. Blood will pool following the law of gravity but if the legs were bent, restricting the blood vessels, then it might pool in the torso. Sorry I can’t be more help.
Usually simple black powder will show gloveprints as well as fingerprints. The bubbly sort of pattern they make will be visible.
Apparently experimentation has shown it is possible. It gets more likely the longer the gloves are worn.
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