But wait! Whose footprint is this? Could that piece of fabric be a clue? Students learn the scientific techniques used to investigate crimes. They examine a scene for clues on how the crime was committed and learn ways to identify the victim and possible suspects. Thye analyze blood spatters, collect samples from a mock crime scene for examination and chemical analysis, explore the intricacies of fingerprinting and are introduced to the science of genetics and DNA forensics. Using the scientific method and deductive reasoning, they evaluate motive and opportunity and ultimately, help to solve the big crime.