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Understanding the Henry Classification System of Fingerprints for Individualization

This unit explores the FBI's primary classification system for fingerprints, specifically the Henry Classification method. Each finger is assigned a specific point value, which is essential for determining an individual's primary classification number. Additionally, it covers the Automated Fingerprint Identification System (AFIS), which began in the early 1970s to streamline fingerprint retrieval. It highlights the importance of IAFIS, the FBI's national database, and the role of biometrics in identification, including advanced technologies like iris patterns and voice recognition for security purposes.

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Understanding the Henry Classification System of Fingerprints for Individualization

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  1. Unit 4: Fingerprints 4.7 Individualization

  2. Primary Classification The Henry—FBI Classification Each finger is given a point value right left Kendall/Hunt Publishing Company

  3. Primary Classification Assign the number of points for each finger that has a whorl and substitute into the equation: right right left left left index ring thumb middle little + 1 = right right right left left thumb middle little index ring +1 That number is your primary classification number Kendall/Hunt Publishing Company

  4. AFIS • The Automated Fingerprint Identification System - a computer system for storing and retrieving fingerprints • Began in the early 1970’s to: • Search large files for a set of prints taken from an individual • Compare a single print, usually a latent print developed from a crime scene • By the 1990’s most large jurisdictions had their own system in place. The problem - a person’s fingerprints may be in one AFIS but not in others • IAFIS—the FBI’s Integrated Automated Fingerprint Identification system which is a national database of all 10-print cards from all over the country Kendall/Hunt Publishing Company

  5. 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

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