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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From live people we usually take a buccal swab from the inside of the mouth. From a deceased person, we can use any part from which we can extract DNA, such as blood, bone, teeth, etc.
For homework assignments can you please email me offline at: lisa-black@live. com and I can send you a list of answers to these types of questions.
Again that depends entirely upon the circumstances. If someone is shot from a distance, then the clothes aren't going to tell you anything. If someone gets close enough to leave their own blood or their hair on the clothing, then they might.
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Email me at Lisa-black@live.com and I’ll send answers.
Witness statements would be included with the officer's work, not the forensics unit. I'm sorry for your loss. Is there a victim's advocate at the police department that handled the crash that could help you? They could walk you through where to find all the information you want. You didn't include your email address.
Whether a surface is soft or hard wouldn't affect the presence of lividity or rigor mortis, they would develop regardless. It might affect the pattern of lividity (whiter at the pressure points).
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