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

I would like to know what exactly happens when using Hair and Fiber analysis to solve a crime. Are there any important things to remember when trying to solve a case involving those two things?

Asked by Adriana Brown almost 7 years ago

With hairs, you can’t identify one to a specific person with only microscopic examination—the main reason it is hardly used these days, and typically only as screening to decide to do DNA analysis. Then DNA analysis is actually done on the skin cells clinging around the root, because the actual hair doesn’t have any nuclear DNA. It does have mitochondrial DNA though few labs can do that.Fiber analysis is also rarely done these days because it can’t be positively identified to an article of clothing, or is it possible (usually) to find out how many of that article had been manufactured or sold and who they were sold to, etc. An analyst can say the fiber is consistent with coming from that article but that’s all. Unless there is a ‘jigsaw match’, a section of the material found that can be fit back into the article of clothing like a puzzle piece.Hope that helps!

Which drug do you think was the most fatal in this report?
Samples are ng/ml
Morphine 220
Tramadol 780
Fentanyl 19

Asked by Cheryl over 6 years ago

As I’m not a toxicologist, I’m afraid I’d have no idea. Sorry!

What does your wok schedule
look like?

Asked by Denisse Parada about 6 years ago

We work 40 hours a week but one of us will be on call during the rest of the time, when no one is at work, 24/7/365.

Lisa, I'm a published author working on a novel. Woman was murdered and buried 20+ years ago. Can authorities 1) determine her identity and 2) Can they tell whether she was pregnant when she died? Thank you in advance!

Asked by Jack over 6 years ago

Answer to both is: maybe. If she was buried in the earth over 20 years, unless the ground was always frozen or so dry that she mummified, there will most likely be only skeletal remains left. So they might be able to establish identity from dental records, medical device implants (say a pacemaker or an artificial hip), or something left in the grave with her (like an ID card). I believe anthropologists can tell from the pelvic bone if someone has given birth, but not if pregnant at the time of death. However depending on how far along the baby is, they might have their own bones present so then it would be obvious. Best of luck!

What’s the difference between a forensic scientist and a crime scene investigator?Can you do both if you have a bachelor degree in criminal and investigation studies and a master in forensic science?

Asked by Bernice almost 7 years ago

Again, titles and job requirements aren't uniform, so the only way to know is to call the crime labs in your area or whereever you might be interested in working and ask them. At the coroner's office we had to have at least a bachelor's in a natural science (this was before they had forensic science majors). At the police department where I am now, they only require a high school diploma but you get more points in the interviewing process for having a four year degree, so we all have one. You can also go on the websites for professional organizations such as the American Academy of Forensic Sciences and check out their job vacancy postings and see what the various positions require. Good luck.

How long would it take you to analyze evidence?

Asked by Denise_ot5 about 6 years ago

That completely depends on what kind of evidence and what analysis we’re doing.

Could it be determined that bones found might be 200 years old? Would DNA be found in bones 200 years old? How long does it take to get DNA results back? Are news releases required when remains are found? Do news reporters come around routinely?

Asked by Arleen Anderson over 6 years ago

1. Probably not in a forensics lab. I'm guessing that would require carbon dating; an archaeologist would know much more than I would. 2. Possibly.3. Depends on the backlog at the lab (could be weeks, could be many months) and how much you're willing to pay for rush work at a private lab.4. I'm not sure news releases are ever required for anything, unless there's some sort of imminent threat to the public. Sorry but I actually don't know how our public information officer decides when to issue a release or not. 5. News reporters usually come to the scene of a crime or accident when they see something going on, but it depends on how busy they are, who they can spare to go to the scene, and whether they guess this will be a useful story to them. It's entirely up to them. We have a public information officer that they can always contact to get any release-able information.