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.
Take as many science courses as you can. Visit all the crime labs in your area, talk to people, and try to get an internship in one or more of them.
No. You might be able to estimate muzzle to target distance from a spray pattern, but not firearm type or brand.
I wasn't aware that there were theories other than: Do the right thing. Don't do the wrong thing.
Figuring out which is which isn't really that hard. Doing it might be, but it's usually not hard to figure out.
Hope that helps!
Pros: Advanced technology and political attention (i.e., funding)Cons: Reality--evidence isn't always there, the job can be dirty and hard, budgets are always limited
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I'm sure document examiners could do this fairly easily but I don't know exactly how. I would guess that alternative light source (like infrared or ultraviolet spectrums) could show that there is no difference between the signature and the rest of the document. Or I believe thin-layer chromatography could show that the chemical makeup is the same. A Questioned Document Examiner could tell you much more.
"Unreliability of a science" is pretty a broad swipe, so I don't have any idea what you're referring to. Any line of work--government, plumbing, brain surgery--can be unreliable if the people doing the work are undertrained,overeager, arrogant or lazy.
You can't go wrong with as many science classes as you can get, and especially anything that's specifically forensics. Programs that have hands-on labs for processing evidence and crime scenes would be great. Titles and job requirements aren't uniform, so the only way to know is to call the crime labs in your area or whereever you might be interested in working and ask them. At the coroner's office we had to have at least a bachelor's in a natural science (this was before they had forensic science majors). At the police department where I am now, they only require a high school diploma but you get more points in the interviewing process for having a four year degree, so we all have one. You can also go on the websites for professional organizations such as the American Academy of Forensic Sciences and check out their job vacancy postings and see what the various positions require. Good luck.
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