Someone broke into the bookstore and stole thousands of dollars’ worth of textbooks. Some hairs were left behind, from which DNA was extracted. An individual was caught with all five of the stolen textbooks in his bag. He claims his friend gave them to him.   You decide to amplify two regions of the DNA (two loci, plural of locus) and digest the samples, and get the following result on the electrophoresis gel. L = Standard marker 1 = Suspect 1 2 = Suspect 2 3 = DNA from crime scene

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Crime Scene Investigation

A crime scene refers to a place where a crime has occurred. The purpose of crime scene investigation (CSI) is to analyze the complete scene and catch the culprit based on the pieces of evidence collected from the place of crime. The people involved in this process are referred to as crime scene investigators.