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.
Nothing that is nationally famous.
Usually, as far as I know, the detective is in charge of the investigation. The CSI doens’t work for them but is there to provide technical support and advice, but ultimately, the detective has the final say. And unlike TV, the detectives are interviewing witnesses and deciding who to arrest. Best of luck!
Generally bodies in the water decompose more slowly than bodies exposed to air, but more specifically than that I cannot tell you. I did find this: https://digital.library.txstate.edu/handle/10877/4078
It's really a pathology question and not my area. Also colder temperatures will cause slower decomposition than warmer temps.
I definitely can't answer your second question but also, are you asking a) how long the person lived as a sailor b) how long the person was in the water before the hand was cut off or c) how long they might have survived in the water after the hand was cut off (assuming they had no access to a tourniquet and such like)? If you could locate someone who worked as a ship's doctor they might be a big help.
Best of luck!!
If you page up to the very first question, the answer goes into this in some detail.
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I would guess in his lap or to his right, but it's impossible to know for sure, since you cannot know exactly how the body was positioned or how powerful the load of the bullet might have been.
I have no idea. They didn't have forensic science degrees when I went to school. But I will check with a friend of mine who teaches.
Get everybody out of it, and then take pictures.
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