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.

SubscribeGet emails when new questions are answered. Ask Me Anything!Show Bio +

Share:

Ask me anything!

Submit Your Question

989 Questions

Share:

Last Answer on July 21, 2022

Best Rated

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 about 5 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!

Have you ever worked a case that was cold?

Asked by Seth over 5 years ago

Yes, certainly. I didn't manage to find the one piece of evidence that solved the whole thing, but I have worked on several. In my department a double homicide finally broke open after 30 years: https://www.news-press.com/story/news/crime/2020/10/01/joseph-zieler-suspect-two-cape-coral-homicides-seeks-dna-expert/3584935001/

How often do homeless people intentionally try to get arrested? I heard they do this because the shelters won’t take them if they are on drugs among other things so they commit crimes in front of cops to have a place to sleep

Asked by How often do homeless people intentionally try to get arrested? I heard they do this because the shelters won’t take them if they are on drugs among other things so they commit crimes in front of cops to have a place to sleep over 5 years ago

I wouldn't be involved with cases like this so I don't know. In my experience with homeless camps the people are usually not too cooperative and don't want to leave, so I haven't seen this happen.

I had crash some OLA 2.5 pills with olanzapine 10 mg tablets together and had kept it. Just few weeks back some police officers came to my house n found it. They tested it with forensic and it came back as heroin.
Please can you explain why

Asked by Malvin almost 6 years ago

I’m sorry but I can’t. That’s a question for a toxicologist. I don’t know anything about drug chemistry.

Have you ever worked on a animal?

Asked by Barry almost 6 years ago

I’ve done microscopic comparisons of animal hairs, when I was doing hair and fiber comparisons at the coroner’s office, to establish a connection between items found on a suspect’s clothing or environment and items found on a victim’s clothing or environment. That’s about it.

Does gas chromatagraph/chromatagram data always show peaks relative to the solvents used with samples to perform gc/ms analysis?

Asked by Answer Seaker about 6 years ago

That is a great question that I can’t answer! So sorry, but I never worked with a GC or Mass Spec. That was the toxicology department.

If the song Before He Cheats happened in real life how would you investigate the vandalized car???

Asked by Sherri Karry Katie Perry almost 5 years ago

I would fingerprint around all the damaged areas and the handles, and possibly collect a sample of paint in case the suspect’s keys were found (provided the state lab would do FTIR analysis on a non-violent case). And of course we’d check for any video cameras in the area that might cover the parking lot. And measure the width of the holes in the tires in case the suspect’s knife was located.