Forensic Scientist

Forensic Scientist

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.

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Last Answer on July 21, 2022

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Hey Lisa:) I was wondering if DNA found in saliva is still discoverble if A) it has been watered down, for example if someone was to spit in a glass of water, and if so how much water before the DNA is too hard to find?

Asked by sandaM over 8 years ago

It would still be discoverable up to a point. How much dilution it could take, I'm afraid I don't know.

Is there much if any room for mistakes in your job? How sever are the consequences? Can a forensic scientist redeem himself/herself after a mistake or is that the end of the line for him/her? How can mistakes be avoided? Much appreciate for your time

Asked by Ahmed Jordan about 8 years ago

Like any other line of work, it all depends upon the mistake made, what effects it had, and how culpable you are. If it's a typo, just fix it and maybe make a note in the file. If you get someone killed, your boss will probably have to fire you. If it was an honest mistake, then you might get a note in your file. If you steal or invent evidence, you'll be fired and probably not work again.

What kind of toxicology is needed to produce evidence of poisoning from chloroganic pesticides and illicit drugs from around 16-17 years ago. A trace unknown substances test? Blood, hair, bone marrow . . . sample? Free at a gov. agency? for a guy.

Asked by Glass over 8 years ago

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.

Hypothetical question: if someone died in a brand spankin' new car (very few germs/bacteria, tight seal on the doors and windows) how long would it take for the body to decompose? What would it look like in, say, 75 years?

Asked by Jordy over 8 years ago

Interesting question, but I doubt I can be of much help. A body can do one of two things after death--decompose or desiccate. So it might turn into sludge or it might become a mummy. It might depend on temperature or pH levels (more relevant if the car was buried) to determine which way it would go. Being sealed would definitely slow the process to a crawl. I had a body in an attic once that was partially wrapped in plastic, and after three years the wrapped areas still had plenty of flesh and the unwrapped parts were down to bone.

Can you work as a CSI and as a forensic scientist at the same time? What I mean is that can you collect the evidence and analyze it as well?

Asked by Alyne about 8 years ago

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.

My father was declared dead of vagal inhibition and cardiac arrest.. I have read that vagsl inhibition often caused by throttling and strangulation. How important it is to expertly examine the hyoid bone so rule out foul play

Asked by Raja over 8 years ago

I'm sorry to hear about your father. The hyoid would normally be observed during the course of an autopsy, but I have had pathologists tell me that people can be strangled without breaking the hyoid, and the hyoid can be broken due to other reasons,so it doesn't conclusively prove anything one way or the other.

What kind of schooling did you have to go through to become a forensic scientist, and how did you get to where you are now with your current job?

Asked by Izzy over 8 years ago

I had a bachelor's degree in biology when I applied to the coroner's office in 1998. They required a degree in one of the natural sciences, and there were no forensic science degrees back then. Only you can decide what you want to go to graduate school for, but as for career requirements you might look at the American Academy of Forensic Science and the International Association for Identification and look at their job vacancy postings to see what they require. As for other degrees with a bio major, there are many private labs for DNA, drug testing, paternity testing, water and food standards analysis, etc. as well as hospital labs that might require. Again, look at job vacancy postings in all these areas--they should be easily found online and they should state the educational requirements. It will also let you see in what areas more jobs are available.