Forensics is the science of using evidence to interpret or establish facts in either a civil or criminal law case. Another method in forensics is to examine trace evidence, or tiny fragments of materials left at crime scenes.

In the next case, you have been given an image of a human hair found at a murder scene. The image has been enlarged 400 times to reveal the different structures within each hair. To find out more about the structure of hair, select the second image, HairStructure.gif, in the pull-down menu.