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

You are testing a swab that has DNA on it, but you don't know if it's saliva/ skin cells/urin/blood.How long does it take to determine what it is and find out who it belongs to?Which steps do you have to go through and how much does it cost pr test?

Asked by Ayden over 7 years ago

Usually we can assume what kind of cells will be on it depending on where it was collected from—if from a pop can, it will probably have saliva and skin cells. From underwear might have semen. If from a dark stain, probably blood. How long it takes depends on the type of analyses done and the type of DNA testing—STR, ySTR, mitochondrial, etc. It will take at least a day or two, and after that it depends on the lab’s backlog. We send our DNA to a state lab and it will take between a month and four months to get the results back. If detectives or prosecutors want it faster and someone’s budget is willing to pay for it, we can send it to a private, accredited lab and pay for a faster analysis. They can do it in as quickly as three days or up to a week or two depending on what you want to pay for. If you want it in a week it will cost a few thousand dollars—something like $600 a sample plus upcharges for expedited service and an overall charge, if I’m remembering correctly. If you want more like three days it will be more like $5000. That’s for the basic three samples—victim, suspect and questioned sample.

Should I get a bachelor's degree in forensic science or in a natural science?

Asked by Rose almost 8 years ago

That depends on what you want to do. Call labs that you're interested in working for or peruse job opportunities postings at the major forensic organizations websites and see what they require.

Well, according to the movie, as fingerprints leave an oily residue, they found traces of R-12 mixed with it. They also said that the uric acid levels in the eccrine gland residue were inconsistent with a guy with active metabolism. Too far fetched?

Asked by R-Mod about 7 years ago

Yes. Unless they have a crime lab more incredibly equipped than any I've ever visited.

A dead body washes up on a beach, and is investigated by forensic scientists. What evidence on the body would indicate sustained tiger attacks spanning a duration of three days + proof that the person died as a result of drowning and not the attacks?

Asked by Don Barry/Screenwriter about 7 years ago

At a guess, I would suggest: slash marks that are too wide for a knife, some partially healed, would indicate animal claws inflicted at different times, but none deep enough or near vital arteries to cause bleeding out. Then water in the lungs would indicate drowning, though that is not always a definite indicator. Drowning is an elimination diagnosis, as in you eliminate other possible causes.

when you find that you have a cold case, how do you find breakthroughs? Or are they almost pure luck?

Asked by NB over 7 years ago

That’s more of a question for detectives, since ‘solving ‘ the case is their responsibility—I’m just there to provide forensic support. But in the cases I’ve been involved with, luck is of course a huge factor.

Hello, I have some questions that I would feel better if I asked through a personal email if that is alright with you. May I ask for your email you?

Asked by YTK111 about 7 years ago

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

What was your first thought when you started your career in forensic science ?

Asked by Krystal over 7 years ago

I’m not sure what you mean—when I decided to go into forensic science (in which case it would be “that sounds really cool, like I could solve mysteries without being a cop”) or more like my very first day on the job (which would be “I hope I don’t screw up “).