That's not broadly true. Anyone has sufficient medical training to declare a beheaded person deceased. States have more and less sane approaches to this. Obvio

That's not broadly true. Anyone has sufficient medical training to declare a beheaded person deceased. States have more and less sane approaches to this. Obviously, many things are not as clear-cut as beheading. But there are states that allow EMTs to make a field declaration, depending on specific guidelines, and possibly with the requirement of contacting a doctor to describe the situation and get their permission to terminate resuscitation efforts.