It's the case of the licked lollipop, and you have to solve it. Fortunately, you have the latest forensic technology on your side: DNA profiling. This interactive feature guides you through the process of creating DNA profiles of several criminal suspects and tissue evidence left at the crime scene. Then you'll compare the profiles you've created and, hopefully, find the criminal—just like forensic investigators do. From NOVA: The Killer's Trail website.
Visit the program page here.