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 true that a females DNA can't be used to trace paternal male lines? How would I trace my fathers ethnicity with him gone and no brothers?

Asked by L.Randolph over 8 years ago

I'm not a DNA expert, but I know that half the 23 chromosomes in a person''s nuclear DNA come from one parent and half from the other parent, so part of the father's DNA would have to be present in the child.

Mitochondrial DNA (which is a different substance entirely, a circular structure present in the cell's mitochondria, whereas nuclear DNA is a double helix present in the cell nucleus) is passed from mother to child without recombining, so only the mother's mitochondrial DNA is present in the child. We test for mitochondrial DNA when nuclear DNA isn't available, like when we only have cut hair or fingernails or old bone to work with.

And B) if it is mixed in with other samples of saliva, for example if 4 people spit into a glass and mixed up, could 4 samples of dna be pulled or is all the DNA ruined? Thank yooouuuuu! :)

Asked by sandaM over 8 years ago

As far as I know since they would all be the same type of cells, they could not be separated.

if dna or other evidence could be reproduced by a 3d printer how would this effect forensic

Asked by viorgateway almost 9 years ago

I'm afraid I don't know enough about how 3-D printing works to be able to answer. I can guess that it might be handy for reconstructing items such as shoeprints and tire tracks from photos or scans. Other than that I don't see where making a copy of something would necessarily affect a crime. And as far as I know they haven't reached the point of replicating on a cellular level such as DNA.

Has forensic science actually made some investigations harder to solve?

Asked by Mariam almost 8 years ago

No.

Juries' unrealistic expectations of forensic science may make court cases harder to win, but that's not the same thing.

What are the normal working hours? Do you work overtime? How is overtime set up?

Asked by Violet over 8 years ago

I'm sorry, I thought I answered this one. We work 40 hours per week, some of us are on four 10s and some on rotating 12 hour shifts. Each of us takes a turn on being 'on call' for overtime calls.

What is your opinion on te csi effect and what concerns do you have about it?

Asked by Kerena over 8 years ago

It's concerning because juries expect more than is reasonable. Not every case is going to have DNA evidence and you don't always find fingerprints on a surface and eyewitness testimony sounds convincing but can be very unreliable. However an expert can hopefully explain all these issues to make the limitations clear, provided the jury listens.

1. What is your past education?
2. What is your salary?
3. Craziest crime scene you helped solve?
4. What were some requirements asked of you for this job?
5. How long have you been doing this?
6. How many years of school did you do?

Asked by Kendall G. Koffler about 8 years ago

School project?Email me at Lisa-black@live.com and I'll send you answers I've accumulated.