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.
In my personal experience, I have only testified to bloodstain pattern analysis once, and it didn’t really tell anything significant about the case because there was blood everywhere, and the fingerprints in blood weighed more than the patterns.
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Luminal and dye stains just enhance or show you where things are, like blood or fingerprints. DNA analysis and fingerprint analysis are equally effective, so you use what you have. You might have DNA at a crime scene but no fingerprints, or vice versa. We don’t get a choice of what’s left at a crime scene, so we have to make the most of whatever is there. Given that, whatever is the most effective is whatever gives you information relevant to the crime. Say there’s a smear of the victim’s blood on the suspect’s shirt. The suspect tells police he found the body and tried to administer CPR. In that case, the DNA is very much there, but useless to solve the crime. If the suspect says he never met the victim and the same shirt is found in the suspect’s closet , then that’s very relevant to solving the crime.
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I am an expert in some areas of forensic science. I am not an expert in law, public safety policy or our political system.
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If it were allowed to dry and kept dry, then it's possible, though the odds would be incredibly slim since the decomposition fluids from the body would most like overwhelm it. It's worth a try.
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Police Officer
Have you ever been shot or seriously injured on the job?
Chick-fil-A General Manager
How often do you have to fire someone, and does it ever get ugly?
Investment Banker
How much can bankers earn in a year?
I'm sorry, but I have no idea. I don't work in digital forensics.
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I don’t see why not. But I wasn’t aware hair could be tested for alcohol, I thought it was only drugs and heavy metals.
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Wow, that's an extremely broad question. I don't know if the rates of crimes solved have been increased greatly--perhaps in some crimes like rape or murder but perhaps not in other crimes like burglary and theft. But certainly the biggest advances in forensics have been DNA and the connectedness of fingerprint databases. Less specific but perfectly valid analyses like pollen, soil, and other trace evidence examination have gone by the wayside. And digital analyses such as the downloading of cell phones and personal computers are helping solve crimes more and more, but then people didn't have cell phones or personal computers 40 years ago so I'm not sure that counts!
I hope that helps!
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