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

Saying that they DID do what ever it is they are being accused of?

Asked by Mike almost 5 years ago

There have been a few cases in which I testified where the defendants were found not guilty, and I was fine with that. In some there simply wasn't sufficient evidence, in one it was clearly self-defense, in two the defendants were charged with murder and I figured it should have been manslaughter. But that's why we have a jury system, and they did a good job.

If I am wearing thin, latex gloves, is it possible for me to deposit my fingerprint through the glove and onto the surface I am touching?

Thanks.

Asked by Richard Gray almost 6 years ago

Apparently experimentation has shown it is possible. It gets more likely the longer the gloves are worn.

If a attacker OC sprayed someone and robbed them is there chemical tests to see if the spray that was on the victims face and the Pepper spray on the suspect to see who did it

Asked by Question about 5 years ago

That’s a good question that I’m afraid I can’t answer. I’m sure there is some way to determine the chemicals used in pepper spray. But this would be affected by a) how long does it remain on the skin before the skin absorbs it and b) most forensic chemistry labs are set up to detect illegal drugs in urine, blood or gastric contents. Identifying any kind of poison or other substance may require equipment or reference databases they don’t have.

Proving it’s the same batch of pepper spray may or may not be possible. I”m not personally involved in this kind of testing, but I can assure you it is not like television. We had a series of cases and wanted to determine the exact composition of drugs with percentages of fentanyl, heroin etc. Turned out while nearly every crime lab can determine if a drug is present, there were only one or two labs in the entire country we could find that could determine percentages, and they charged an arm and a leg. 

Sorry I can’t be more help.

What is something other scientists do as well as officers such as patrol and detectives that annoy you or even piss you plumb off

Asked by Johnathan about 5 years ago

Usually I'm annoyed most often by people asking for things to be done immediately while ignoring a) that we are working on more cases than just theirs, b) that some processes take time, and/or c) that what their asking for isn't going to prove anything for them anyway.

As for fellow scientists, the worst offenses are a) finding typos in my reports and b) taking the last piece of cheesecake out of the communal fridge.

Hello,

How do you go back and re construct the last 24 hours of someone’s life

Asked by Margarita over 5 years ago

I’m sorry but I have no idea. that would be the detective’s job, not mine.

Best of luck!

What's the best way to highlight and uncover gloveprints left by Nitrile gloves from a surface?

Asked by Richard almost 6 years ago

Usually simple black powder will show gloveprints as well as fingerprints. The bubbly sort of pattern they make will be visible.

Why do police still collect so much evidence even though they already have enough to prove beyond a reasonable doubt that someone did it. Like a clear video of someone doing it but they still need DNA, white seed, and a confession. I don’t understand

Asked by Jane almost 6 years ago

Because trials don't occur, especially for a homicide, for another year or two or three after the crime, when there's no longer a chance to go back and collect other evidence. Confessions can be recanted, videos are never as clear as they look on TV, and everything will be challenged during a trial. And the evidence can be twisted. I had a guy who confessed to three different people the night of the crime, and then a year later went to trial and pled not guilty.