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

Why is a confirmatory test required for semen but not for blood?

Asked by Chris Kay over 9 years ago

Wow I am sorry I somehow didn't answer this question!! In my experience we do a presumptive test for both and then send to DNA testing because they will confirm the presence of DNA in the quantitative step. We do have the OBTI test for human blood but there's no reason to do it u less we're in a huge hurry to confirm human blood.

How to chemically distinguish between an original hand-written signature and a printed copy (the one that is scanned and then printed)

Asked by rixy almost 9 years ago

I'm sure document examiners could do this fairly easily but I don't know exactly how. I would guess that alternative light source (like infrared or ultraviolet spectrums) could show that there is no difference between the signature and the rest of the document. Or I believe thin-layer chromatography could show that the chemical makeup is the same. A Questioned Document Examiner could tell you much more.

Has forensic science actually made some investigations harder to solve?

Asked by Mariam over 8 years ago

No.

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

Can extensive bruising be caused by pushing someone with the palm of the hands on the chest area

Asked by Jay over 8 years ago

I'm not a doctor but I don't see why not. If the flesh and muscle is being crushed between the ribs and the person's hands, that would have to cause damage. Sometimes CPR can cause cracked ribs.

What i meant by summary were the things that forensic scientists do when the first see a crime scene till the end of the investigation..... thanks!!

Asked by John over 9 years ago

I'm sorry but that can, and has, fill several textbooks. There's just no way for me to summarize it in a paragraph.

What should you major in if you want to go into this field?

Asked by Emily over 8 years ago

Usually in forensic science or any kind of natural science. If you want to go to into drug testing or toxicology, major in chemistry. If you want to do DNA analysis, then biology or biochemistry.

So is there a specific test for nuclear DNA versus mitochondrial DNA?

Asked by L.Randolph over 9 years ago

Yes, they are different substances.