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www.lasm.org Forensic Crime Lab and Mystery Crime Lab Vocabulary Forensics: Using the tools of science and scientific facts to help solve legal problems. Crime scene: Where a robbery, murder, or other crime happened. Investigation: To study by close examination and systematic inquiry. Victim: Someone who is hurt, injured, or killed by a person, group, or event. Suspect: Someone who is suspected of doing something wrong or of committing a crime. Witness: A person who sees or hears something that happened. A person who gives evidence in a court of law. Evidence: An object or information used to reach a conclusion. Physical evidence: An object that can be seen and touched which is used as evidence in a trial to prove a fact. Examples are: a footprint, fingerprint, blood, hair, cloth, weapon, security video, etc.). Fingerprint: The pattern of ridges in the skin of the finger, often used as evidence in criminal investigations. pH testing: A measure of the acidity or alkalinity of a substance. Blood group/Blood type: One of the four classes, called A, B, AB, or O, into which individuals or their blood can be separated based on the presence or absence of specific antigens, or markers, in the blood. Entomology/Forensic entomology: The scientific study of insects used to aid legal investigations. Osteology/Forensic osteology: The scientific study of the human skeletal system used to aid legal investigations Blow flies: Flies that lay their eggs in decomposing organisms or in open sores or wounds. Blow flies are often used in legal investigations to help determine information about a crime scene. Chromatography: Method used to separate and identify parts of a mixture.