So let's assume that the police found a nameless body with high decomposition on a hill, and then the forensic doctor will check the time of death, blood, age, sex, clothes, whether it was hacked or killed, and the analysis of the surrounding environment, and then check the missing person information to see if there is a corresponding one. We also need to check the DNA of the body and compare it with the information in the DNA library. I'm looking into this man's social relations and who he has contacted. Zhuo gradually found out.
Therefore, people who want to throw that person into the river, it is best to deal with it without leaving traces, fingerprints and cigarette butts (DNA). It will be much more difficult for the police to find out.