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

Hi, so how do you get used to blood and gore?

Asked by Crazy over 5 years ago

You just do. Somehow you can either tolerate it or you can't, or you learn to cope with it. There are cops who can work homicide for thirty years and still have a weak stomach. They just don't let it keep them from doing their jobs.

Which, in your opinion, is the most effective in solving crime on a daily basis: DNA analysis, Fingerprint analysis or Luminol (or other) spray testing?

Asked by Eliza about 6 years ago

Luminal and dye stains just enhance or show you where things are, like blood or fingerprints. DNA analysis and fingerprint analysis are equally effective, so you use what you have. You might have DNA at a crime scene but no fingerprints, or vice versa. We don’t get a choice of what’s left at a crime scene, so we have to make the most of whatever is there. Given that, whatever is the most effective is whatever gives you information relevant to the crime. Say there’s a smear of the victim’s blood on the suspect’s shirt. The suspect tells police he found the body and tried to administer CPR. In that case, the DNA is very much there, but useless to solve the crime. If the suspect says he never met the victim and the same shirt is found in the suspect’s closet , then that’s very relevant to solving the crime.

I know they use interrogation techniques, polygraphs, and have experts who recognize truth and deception. But do and could someone use hypnosis?

Asked by DJ over 5 years ago

Supposedly, but I don’t know of any cases personally.

Hi! I was wondering something about timing. Say a kidnapping takes place in a hotel room. How long is the room cordoned off? At what point is the evidence collected and taken away? When can the room be let again? (Working on a novel!)

Asked by Nico almost 6 years ago

We’ll hold the scene as long as we need to get everything done, and that could be a day or two or three, but for a kidnapping it probably wouldn’t be more than a day, just enough to collect all the victim’s stuff, and collect fingerprints, hairs, fibers, anything that might belong to the kidnapper. We eventually get tired and want to go home (though we can go and come back, so long as it hasn’t been ‘released’) and the police department don’t really want to hold it longer then absolutely necessary, because they have a cop or two sitting there doing nothing but guarding the scene, and it takes them off the road. Hope that helps!

How did your knowledge of bloodstain pattern analysis help you to secure convictions in past experience?

Asked by Jason Tulanda about 6 years ago

In my personal experience, I have only testified to bloodstain pattern analysis once, and it didn’t really tell anything significant about the case because there was blood everywhere, and the fingerprints in blood weighed more than the patterns.

How is it determined that rape occurred after death?

Asked by JODI over 6 years ago

That’s an excellent question that I”m sorry I can’t answer. You will need to ask a pathologist. Sorry I couldn’t be more help!

Assume a swimming pool on a yacht was filled with regular tap water and chlorine. A person drowns in the pool. The body is dumped over board and found within hours. Could lung water be tested chemically to help discern the true facts?

Asked by PT O'Neil over 6 years ago

As far as I know that is possible. Whether a medical examiner’s office would actually test the water in the lungs in a case of apparent drowning is another matter. There is also the possibility of ‘dry-drowning’ in which the throat closes and no water gets in the lungs. A pathologist told me once that drowning is sort of a ‘negative diagnosis’ in that, if no other cause of death presents itself and the person is found in water, then drowning is assumed. Sorry I can’t be more help!