This is a lab activity that simulates using a Gel Electrophoresis to analyze and compare the DNA found at a crime scene and that of 6 possible suspects. Each group of students receives a different crime perpetrated by a different suspect, making copying from other groups a non-issue. This can even be personalized to use local landmarks to increase student interest. Key Concepts: Gel Electrophoresis, Restriction Enzymes, DNA Fingerprints, Crime Scene Investigation