After a crime has been committed, the evidence left behind can identify a potential culprit. A single piece of evidence is not usually enough to convict someone. Even in this age of DNA, fingerprints and blood stains are still important at helping to identify a criminal. In this experiment your students will solve a crime by dusting for fingerprints and use fluorescent dust to search for and identify trace amounts of blood. Kit includes: instructions, brushes, magnifying lens, fingerprint cards, black dusting powder, fluorescent green and grey dye dusting powder, fingerprint lifters. All you need: alcohol and long wave U.V. light.