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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Greetings. I am writing a murder mystery in which the victim died from a blow to the head. The killer then loaded the body into the back of an SUV, where it lay for perhaps up to 6 hours. Then the killer dumped the body in a location where he was hoping to frame someone.

First question. Several hours after death, could there still be enough blood at the location of the head wound to leave blood evidence at the dump location? Would there be any way for the forensic experts to determine that that blood landed where it did several hours after its owner had died?

Another scenario. What if the killer, in the process of dumping the body, tried to make it look like the victim died in that location by bashing his head, in the vicinity of the wound, on the corner of a dumpster? What kind of evidence might such a maneuver leave?

I hope this question makes sense... Thank you. :)

Asked by CrankyBeach over 8 years ago

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!

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. 

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.

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 almost 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.

whats the most challenging thing about your job?

Asked by kenia almost 8 years ago

Worrying that I might have missed a piece of evidence at a crime scene or in a lab process.

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.

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.