Although it's a common plot in young adult novels, it's rare kids help police solve cases in real life. But some young people have helped crack cases. Read their stories.

Katie Zejdlik, a biological anthropologist and collections and facility curator at a forensic body farm, tells us why researching dead bodies is important and why you might find a kebab skewer in the lab among the calipers and microscopes.

In the second part of a three-part series on crime-scene investigating, retired CSI Ken Martin breaks down what happens once law-enforcement teams arrive and some of the challenges he's faced in gathering evidence.

Ken Martin, a veteran crime scene investigator, describes problems that arise when gathering evidence, and how to avoid having defense attorneys claim contamination.