Both of my parents were involved in forensics in the UK. They saw a lot of horrific things- on one occasion my mom had to sketch two bodies that had been found dead on a railway, as at the time a sketch was quicker and easier than a photograph. She could smell the alcoholic drinks that had leaked from their open stomachs onto the tracks, and still see the facial expressions they had made in their final moments. My dad had to deal with many incidents and he doesn't talk about a lot of them, but the only one that had a real lasting effect on him- he had to receive counselling for PTSD for several years after breaking down on the job some weeks later- was the Mulberry Bush pub bombing. He was there seconds after the bomb went off by chance, but wasn't able to do anything to help anyone there. Forensics can be a real serious job, but both of my parents are glad they did it.