You're probably not going to find a lot of information on forensic photography. The truth is, this is an area of photography that your typical photographer does not get into. You're dealing with taking photos of people who have been brutally murdered and an assortment of other crimes. Forensic photography is not for the weak stomach. But just what is involved in becoming a forensic photographer? The course outline may not rival going to medical school, but it's quite a handful.
Michael Russell has written a short article on the topic iff you're thinking that this is something you'd like to do, head over and read: