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.
Hi Cybill, I'm sorry I didn't get back to you sooner. I believe that they can use the inside of a tooth for DNA analysis, but of course if the tooth is loose they may not be able to determine which body it came from if there's more than one. I expect a dentist would need the teeth still in the jaw to compare with dental x-rays in order to make a comparison that way, but it may all depend on what work, if any, has been done to the tooth and how distinctive that work is. I'm not a DNA analyst (any more) or a dentist so I'm not 100% sure.
If the bottle is sealed well, I don't think so. Hair is pretty tough.
That determination is made by the pathologist doing the autopsy, and there are a number of ways--body temperature, rate of decomposition, rigor mortis, but it will be an estimate, not the precise number that you might see on TV. All those things can depend on the environment where the body is, temperature, exposure, physical characteristics of the victim, medical conditions etc. Entomologists can help if there is distinct bug activity at the scene as well.
Hope that helps!
What was it they were testing?
Veterinarian
Antiques Dealer
Bouncer
The 'forensics industry' encompasses at least twenty different areas, from pathology to accounting, so any certifications would be administered by that disciplines organizing body. Fingerprints, for example, are regulated through the International Association for Identification. Death Investigators have their own organization. Whether or not these certifications are required for your job is up to the agency (such as your city police department or a county medical examiner's office) hiring you for that job.
I'll email you.
But what sample were they testing? What piece of evidence were they analyzing in the gas chromatograph?
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