the only forensic scientist who's work involves knowing how a body decomposes is a Forensic anthropologist.
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Answer: Forensic pathologist
Explanation:
Forensic pathologists are scientists or medical professionals who studies the time since death, manner of death, and cause of death. They determine the time since death on the basis of decomposition of the carcass. They determine how the surrounding conditions of the body speed up the decomposition process. For example, the decomposition rate get slower during the winters and faster in summers. The decomposition rate get slower in water and faster on land. The decomposition rate get slower in freshwater as compared to sewage water.