![]() Can you tell what kinds of fibers they are? Where did they likely come from?Ĭheck out any dental evidence in your crime scene. What does each specimen look like? Is it smooth or rough? How do the ends look? Compare miscellaneous hair and fibers you pick up from the carpet or couch. Make a wet mount of the hair or fibers by putting a drop of water on a microscope slide, adding the specimen, and pressing a cover slip down on top. (You can also use a 10x or stronger magnifying glass.)Įxamine different cloth fibers, too – try cotton, wool, and rayon or acetate. ![]() ![]() If you have a microscope, compare different kinds of hair at high power magnification. You can collect these with a pair of tweezers and place them in envelopes or ziplock bags to identify later.Īre there any prints or scuff marks on the floor from shoes? Bits of soil or rock that might have been tracked in? To be thorough, record all of these clues and make sketches in an investigation notebook. See how many clues you can identify in your own crime scene.Ĭhoose a room (e.g., kitchen, living room, bedroom) or part of a room and go over it carefully, finding any trace evidence such as hair, clothing fibers, and chips of paint. Second, uncover fingerprints with dusting and cyanoacrylate fuming.Īnd third, discover the colors of ink through chromatography. Learn about crime scene investigation with three hands-on activities.įirst, look for clues at your own “crime scene.”
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