Forensics ... to a reasonable degree of scientific certainty
Don't known why Youtube suddenly thinks I should be watching John Oliver's Last Week Tonight … but it was interesting to see that such an important subject (Forensic Science) was something that was considered laughable enough to be made fun of.
https://www . youtube . com/watch?v=ScmJvmzDcG0
I imagine the US has a much larger problem with this issue than other countries because of the way their justice system works.