The First Criminal Fingerprints

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Forensic scientist use DNA to connect a suspect to a crime and to rule out a suspect. A DNA profile is a summary of one person’s genetic information. Throughout history fingerprints have been used for identification. In 1892, Juan Vucetich made the first criminal fingerprint identification. Fingerprints are unique and no two people have the exact same fingerprint pattern. A fingerprint will remain unchanged for the life of an individual. Fingerprints have ridge characteristics to allow them to be classified. Forensic toxicologists test human fluids and tissues to determine presence of drugs and other chemical substances in the body. Toxicologists may also test stomach contents and/or maggots. In forensics the use of the instrument Headspace

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