A dastardly crime has been committed. Act as a real-life detective and distinguish truth from lie. A speck of dust, a strand of hair, trailing footprints, clues piling up, suspects are everywhere. Using a range of scientific techniques, unravel fact from fiction and determine who the true criminal is. Analyze handwriting, match fingerprints, test powders, examine fibers, and make molds of any footprints left behind. Increase your powers of observation and deduction by figuring out unsolvable thefts, arsons, mysteries and more. Think like an investigator and use the evidence to determine "Who done it?"