Doctors must distinguish between natural death (from internal illness) and non-natural/unclear death (accident, suicide, or crime).
The responsibility falls strictly on physicians, though the specific type of doctor often depends on where the death occurred: Die Leichenschau
In public places or cases of suspected foul play, forensic physicians or the police are involved. 3. The Procedure Step-by-Step Die Leichenschau - Thieme E-Books & E-Journals - Die Leichenschau
The (post-mortem examination) is the formal medical examination of a deceased person to confirm death, determine the cause and manner of death, and establish the time of death. It is a legal requirement in Germany and a critical step before a death certificate can be issued or a funeral can take place. 1. Purpose and Legal Framework Die Leichenschau