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

Best Rated

Is it Unauthorized Practice Of Medicine to make someone wear a mask that is classified by the FDA as a medical device? I think so tell my why, why not, or if you can't or don't know how to answr. Thanks

Asked by Maria over 4 years ago

I have absolutely no idea.

Hi, I’m writing a novel in which a tape-and-murder victim’s remains are found after ten or twenty years outdoors in rural New England. Could investigators find the perp’s dna at that point?

Asked by Laurel almost 5 years ago

On the victim’s body? Most likely not because after that much time the victim would most likely be skeletal remains only, if buried and certainly if on the surface. If the body was in some kind of container, sealed, it might be completely decomposed, mummified or preserved, depending on circumstances. If the killer’s blood or semen got on some object that was with the body, it could conceivably survive if protected, but it would be very unlikely to yield a usable DNA profile.

Hope that helps!!

Also, is it possible to specifically detect that the DNA is from saliva and nothing else?

Asked by AJ over 4 years ago

I don't believe so, but I haven't done DNA analysis in 20 years so I'm not the best person to ask. I know there's an amylase test for saliva, but I don't know if it's used any more. And if you have a mixture I doubt it would be possible to tell what DNA is from what bodily fluid.

What is the worst part of your job? What is the best part? How do u cope with the stress of the job/the dead bodies etc?

Asked by Niamh over 4 years ago

What is your favorite part of this job?All the interesting, different, bizarre stories that make up the crimes that have happened that we have to investigate. 



What is you least favorite part of the job?Being 'on call' and knowing you can be interrupted at any moment of the day and have to go to a crime scene, even if it's the middle of the night or a holiday. I've also had to change vacations because I have to testify in a trial. I hate that. 

Being around the dead is something you either get used to really quickly or you don't. The dead will not bother you, but the living can drive you crazy! And stress depends where you work. I have a great office and a relatively low-crime area, so unless we have a lot all happen at once, which is not too often, it's really not that stressful. If I lived in a more hectic place with too many demands and not enough time or resources, it might be a different story.



At a postmortem crime scene where hair has fallen out from the victim, over time, is all the loose hair collected for evidence or just some of it

Asked by Leesa over 4 years ago

That would depend a great deal on the circumstances. Any hair actually on the victim that does not appear to belong to the victim would likely be collected. If there was obviously a struggle, if the victim was beaten or strangled, hairs on their hands or caught in their fingers would warrant special attention or any clumps of hair nearby. If the victim's lying on a carpet that apparently hasn't been vacuumed for the past decade, then single hairs might be disregarded. If the person is outside and shot from a distance, then hairs would likely be disregarded.

I hope that helps!

how do finger[rints get on things, does our fingers leave fluids when we touch things, or we just leave a print on existing dust?

Asked by rekhab over 4 years ago

Sorry it took me so long to get back to you!

Yes, fingerprints are impressions made by the oil and sweat on our fingers. If a surface is very dusty, we take away dust on our fingers instead of leaving prints on the object. It will look like fingerprints should be there because there will be finger marks in the dust, but actually we just removed dust.

Hope that helps!

Hi what job can i do in forensics that does not require pure math

Asked by Lamecia almost 5 years ago

I don’t know what you mean by pure math. Most crime scene work, fingerprints, tool marks, serology, might need regular adding and subtracting, but I don’t know of any field that uses calculus or algebra. DNA analysis uses a lot of statistics and ballistics and traffic accident investigation might use physics and geometry. But those are the only examples I can think of.

Best of luck!