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 was wondering if I sent you a picture of a bone can tell me if its human or animal?

Asked by dee over 12 years ago

I can try. I'm not an anthropologist, but we do have a field guide here showing the skeletons of many mammals and birds. We used to have a lot of 'found bones' calls at my agency--the area had a great deal of construction going on in the area and the digging would often turn up bones.

My girlfriend's condo was broken into, but the cops said it wasn't a big enough deal to check for fingerprints. Who makes that decision, and can I hire a forensic scientist privately to do that?

Asked by Marc almost 13 years ago

I apologize to your girlfriend on behalf of the law enforcement community. No one should ever be told that their crime is not 'a big enough deal.' Even if the responding person thinks that, and I'm not saying we don't sometimes, you would think they'd have better sense than to say so. Unfortunately you had a lazy cop who didn't want to get his hands dirty--or, truly, that could be an unofficial policy taught to rookies by other lazy cops who don't want to get their hands dirty. OR it could be the policy of the latent prints department who want to limit their caseload so they won't accept cases that had a claim less than X amount of dollars. So it's hard to know where it came from, but it's still wrong. Anyone who's burglarizing a condo is burglarizing plenty of other places as well and it would benefit everyone in town if they were caught. It would only take ten or fifteen minutes to throw some powder on at least the point of entry and any smooth and glossy surfaces the burglar had to have touched (bearing in mind that knocked over is not the same as touched) such as a mirrored medicine cabinet or a glossy lacquered jewelry box. Now if she's positive the perpetrator is her ne'er do well stepson who lives there (so that it is technically not burglary) or she realizes the burglary happened 3 weeks ago and she didn't check her jewelry until now or some such circumstances as that, or if the door had been left standing open and the only item disturbed is fabric-covered so it won't hold prints, I can understand not processing for prints, but they still should explain that. That said, burglaries are my LEAST favorite task at my job, but that's because I'm lazy and hate getting my hands dirty.

Do fingerprints contain DNA? And if so, then isn't fingerprinting kind of obsolete, since you can just test the DNA instead of the print?

Asked by Sascha over 12 years ago

The skin cells sloughed off and left in a fingerprint contain DNA, but there's no guarantee that there will be a sufficient amount to obtain a DNA profile so it's a risk to go straight to DNA testing instead of developing the fingerprint. Besides, identical twins will have the same DNA but different fingerprints.

Whose payroll are forensic scientists on, the coroner's office, or the police force?

Asked by MissPink almost 13 years ago

Not to sound like a smart aleck, but you're on the payroll of whoever you work for--that can be the police department, the state police lab, the coroner's or medical examiner's office, the county sheriff's department, or an independent lab (usually doing DNA). You can also be a sworn officer or a civilian employee of same. Titles are not uniform. When I was at the coroner's office my title was forensic scientist because that was what the coroner said it was. At the police department I was an evidence specialist and then became a forensic specialist after I completed my training for fingerprint analysis. Your title is whatever your boss says it is.

What do you think forensic and biology study will lead us in the next ten years

Asked by bob over 12 years ago

To ever-more sensitive DNA collection and analysis, I believe. The other growing fields will probably be the analysis and utilization of computers, cell phones and video surveillance.

what type of issues in the forensic science field are still lurking around that cause errors in assumptions or holding progress in a certain study behind

Asked by bob over 12 years ago

I can't think of anything that's industry-wide. Errors in assumptions can be made at any time by any body--like, I might assume you aren't going to get DNA off a gun trigger because I never have, while a brand-new person might assume you will get it regardless of any other factors because a textbook said it was possible, and we both might be wrong or right in that particular case but not others. So most errors would be made by assuming something can't be done, either because a tech or officer never had any luck with it or because they aren't up with the latest information, which will happen anywhere because no one can keep up with anything. As for study, the only thing holding that back is what's always been holding it back--time and money.  Most of us can barely keep up with our caseload, much less take on a research project, and most government budgets have been battered down to sustenence level. It's getting better as the economy improves, and there are major research projects underway through the various forensic organizations, FBI and NIJ.

How does 260mg/100g of liver tissue translate into for a BAC number? is is .26 or .026 or .0026? Got a bet going--thanks.

Asked by auntiev over 12 years ago

I do not know! So I asked the local M. E. investigator, who said:

It would be .26….

If this is liver, then I presume you’re talking about a decomp… and if you’re talking about a decomp, then keep in mind that the process of decomposition will raise the ethanol level in the body anyway so some physicians don’t even consider liver tissue entirely accurate when looking at alcohol.