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

Hey Lisa:) I was wondering if DNA found in saliva is still discoverble if A) it has been watered down, for example if someone was to spit in a glass of water, and if so how much water before the DNA is too hard to find?

Asked by sandaM about 9 years ago

It would still be discoverable up to a point. How much dilution it could take, I'm afraid I don't know.

Where would an author go if they wanted to ask questions of a forensic scientist in order to get details right for a book the are writing?

Asked by Arillius almost 9 years ago

An excellent site is my friend Dr. Lyle's "The Writer's Forensic Blog" - https://writersforensicsblog.wordpress.com/

You also might attend any public events at your local police department, such as a citizen's academy. There you might meet members of the crime lab and see if any might be amenable to you emailing them questions now and then. Feel free to email me as well via my website: www.lisa-black.comBest of luck!

What are some skills and abilities a person would need to be successful in this type of work?

Asked by Violet over 8 years ago

You have to have good attention to detail, can work under stress and unpredictable circumstances, be patient and cautious. 

I was wondering if the dna from different sources are the same, for example is the dna the exact same in sweat, hair, saliva etc? I ask because I once saw a movie where the criminals threw hair over a crime scene, ruining all the DNA?

Asked by Lisa Fan about 9 years ago

Your nuclear DNA is the same in the skin cells holding your hair in place, your saliva, your blood, your skin, your bone marrow etc. Your friend's DNA is of course different from yours, but the same in their saliva, their blood etc. The criminals probably threw someone else's hair around the crime scene so it wouldn't match them.

Do you ever get called to crime scenes to conduct your own investigation or is the evidence brought to you for analysis? Do most forensic scientists get to do both crime scene investigations and analysis? Thanks for your time.

Asked by Chicken over 8 years ago

I do both, but it depends entirely on your department. People at smaller departments usually have to cross train and fill several roles. At larger departments with more personnel, people may specialize. The only way to know is to call the agency you want to work at and ask.

whats the most challenging thing about your job?

Asked by kenia over 8 years ago

Worrying that I might have missed a piece of evidence at a crime scene or in a lab process.

Hypothetical question: if someone died in a brand spankin' new car (very few germs/bacteria, tight seal on the doors and windows) how long would it take for the body to decompose? What would it look like in, say, 75 years?

Asked by Jordy almost 9 years ago

Interesting question, but I doubt I can be of much help. A body can do one of two things after death--decompose or desiccate. So it might turn into sludge or it might become a mummy. It might depend on temperature or pH levels (more relevant if the car was buried) to determine which way it would go. Being sealed would definitely slow the process to a crawl. I had a body in an attic once that was partially wrapped in plastic, and after three years the wrapped areas still had plenty of flesh and the unwrapped parts were down to bone.