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

If a deceased is found on a soft surface such as a bed with no lividity or rigor mortis, what can be said about the estimated time of death?

Asked by Erica M over 9 years ago

Whether a surface is soft or hard wouldn't affect the presence of lividity or rigor mortis, they would develop regardless. It might affect the pattern of lividity (whiter at the pressure points).

What is you opinion on the product rule used in DNA match probabilities and is this a reliable statistical method to employ when new DNA profiling multiplexes analyse STR markers within the same chromosome?

Asked by andres11 about 9 years ago

Sorry, but as I'm not a DNA analyst, I wouldn't have any idea.

As a forensic scientist, do you use the diameter of blood splatters as clues to how the crime happened?

Asked by Rylee almost 9 years ago

Yes, the arcsin of the width divided by the length of the stain will give you the angle of impact at which the blood struck the surface (usually a wall). The direction of the stains can be traced back to a point of convergence and from there the angles can be traced back to a distance from the wall, giving you the approximate point in space where the blow was struck.

Can I interview you on this for a school project?

Asked by Samantha about 9 years ago

Sure, email me at lisa-black@live.com.

How many hours do you put in a day

Asked by jon57 over 8 years ago

Whatever you’re scheduled to work—depending on your agency’s setup you might work 8, 10, 12 hour shifts, maybe plus overtime call-outs.

In the case of a partial hanging (person on knees), if complete rigor has set in when the body was taken down, is it still possible for the blood to pool on the back?

Asked by Terry about 9 years ago

According to a little chart I have tacked up above my desk, livor mortis sets at about the same time as complete rigor mortis, so it could be possible. But you really need a pathologist to answer that.

Lisa thanks you for responding. Yes there are many variables in this but what Iam asking is : If you had to take a measure of amount of blood that was on human skin , how would you?

Asked by Rodger over 8 years ago

I'm sorry but I really don't know.