"Close," he said. "I'm from 2020 and sheriffs are slightly different in my time, but I think based on what I can remember from history, my job would be similar. The techniques I use might not be though."

How to explain psychology to someone who came from a time where the field was still several hundred years away? "I study people's behavior and personality traits in order to help me determine whether they're killers or not." That's probably the easiest way to explain what he does.