The same expertise we learned at the autopsy table can be applied to living people who've been shot, battered, or raped. The search for trace evidence is the same.
“Hear the birds? Sometimes I like to pretend that I'm deaf and I try to imagine what it's like not to be able to hear them. It's not that bad.”
“The assumption that nature is all there is, and that nature has been governed by the same rules at all times and places, makes it possible for natural science to be confident that it can explain such things as how life began.”