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.
That’s hard to say. It depends not only on how old the stain is but how old or how sensitive the reagents are. I’ve had old known semen stains not react with relatively new reagents so it is possible.
Share Answer: 
So the victim was killed and put in a freezer, then moved to another state and put in another freezer? I have no idea how that would be figured out, unless they leave some compelling clue frozen with the victim.
Share Answer: 
Sure, I'll email you.
Share Answer: 
I couldn’t. I don’t know if a pathologist or biologist could.
Share Answer: 
Bracketologist
Why have there been so many 15-2 upsets, but no 16-1's?
Professor
Are professors really subject to the "Publish or Perish" policy?
Hospice Nurse
Which terminal diseases are the most painful to watch people go through?
I'm sorry but that's a very broad question. What kind of pattern and impression evidence are you talking about?
Share Answer: 
Sorry for the delay, I’ve been on vacation. I guess it depends where the activity took place. If it all took place in bed and they washed the sheets, then there may not be any to find. An alternate light source can look for possible spots of semen, but the problem is many things can fluoresce, such as vaginal secretions, sweat, saliva, cleaners, certain fibers, etc.
Share Answer: 
You can cut off a sample of the tampon or sheet (if you don't want to cut a hole in your sheet, just take a clean cotton swab, dampen with water, and rub on the stain until some of the stain transfers...do that before you wash the sheet or it probably won't work well). Let it air-dry, if necessary, and package in a clean envelope. Then rub a clean cotton swab on the inside of your own mouth for your own standard and seal in a separate clean envelope. Don't put anything in plastic. You should be able to get those tested at a lab, such as LabCorp, though it might take some explaining since they usually do parent-child comparisons. This will cost you anywhere from $250 to $600, according to their website. Of course all that will do is tell you if the blood is yours. It won't tell you whose it is. PS if it's a tiny amount on the sheets it could also be from him--shaving nick, shin scrape, that sort of thing. We bleed a lot more than we realize.
Share Answer: 
-OR-
Login with Facebook (max 20 characters - letters, numbers, and underscores only. Note that your username is private, and you have the option to choose an alias when asking questions or hosting a Q&A.)
(A valid e-mail address is required. Your e-mail will not be shared with anyone.)
(min 5 characters)
By checking this box, you acknowledge that you have read and agree to Jobstr.com’s Terms and Privacy Policy.
-OR-
Register with Facebook(Don't worry: you'll be able to choose an alias when asking questions or hosting a Q&A.)
Browse Jobs
Host a Q&A
Search
Submit Your Question
Host a Q&A
Last 7
