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Other Prints Ears—shape, length and width Voice—electronic pulses measured on a spectrograph Foot—size of foot and toes; friction ridges on the foot Shoes—can be compared and identified by type of shoe, brand, size, year of purchase, and wear pattern. Kendall/Hunt Publishing Company

Other Prints Palm—friction ridges can be identified and may be used against suspects. Kendall/Hunt Publishing Company

Other Prints Footprints are taken at birth as a means of identification of infants. Kendall/Hunt Publishing Company

Other Prints Lips—display several common patterns Short vertical lines Short horizontal lines Crosshatching Branching grooves Kendall/Hunt Publishing Company

Other Prints Teeth—bite marks are unique and can be used to identify suspects. These imprints were placed in gum and could be matched to crime scene evidence. Kendall/Hunt Publishing Company

Other Prints The blood vessel patterns in the eye may be unique to individuals. They are used today for various security purposes. Kendall/Hunt Publishing Company

Biometrics Use of some type of body metrics for the purpose of identification. (The Bertillon system may actually have been the first biometry system.) Used today in conjunction with AFIS Examples include retinal or iris patterns, voice recognition, hand geometry Other functions for biometrics—can be used to control entry or access to computers or other structures; can identify a person for security purposes; can help prevent identity theft or control social services fraud. Kendall/Hunt Publishing Company

Fingerprint Forensic FAQs Can fingerprints be erased? No, if, for example, they are removed with chemicals, they will grow back. Is fingerprint identification reliable? Yes, but analysts can make mistakes. Is fingerprint matching carried out by computers in a matter of seconds? No, but the FBI’s Integrated Automated Fingerprint Identification System (IAFIS or AFIS) can provide a match in 2 hours for the prints in its Master File. Forensic Science: Fundamentals & Investigations, Chapter 6

The Future of Fingerprinting New scanning technologies and digitally identifying patterns may eliminate analytical mistakes. Trace elements of objects that have been touched are being studied to help with the identification of individuals. To help with identification, other physical features such as eyes and facial patterns are also being studied. Forensic Science: Fundamentals & Investigations, Chapter 6

. . . . . . . . . . . . . . . . . Summary Fingerprints have long been used for identification, and in the mid-1800s were recognized as unique to each person. Three main groups include arches, whorls, and loops. Basic analysis includes looking for cores, deltas, and making a ridge count. Investigators search for patent, plastic, and latent prints. Dusting with powders or using special chemicals can make latent fingerprints visible. New developments may eliminate errors by analysts. Forensic Science: Fundamentals & Investigations, Chapter 6