15 - 2 Classification of Fingerprints July 27, 2019 Fingerprints

What are Fingerprints? There are basic principles underlying the use of fingerprints in a criminal investigation July 27, 2019 Fingerprints

Basic Principles of Fingerprints A fingerprint is an individual characteristic because no two fingers have yet to be found to process identical ridge characteristics July 27, 2019 Fingerprints

Basic Principles of Fingerprints A fingerprint remains unchanged during an individual’s lifetime July 27, 2019 Fingerprints

Basic Principles of Fingerprints Fingerprints have a general ridge patterns that permit them to be systematically classified July 27, 2019 Fingerprints

July 27, 2019 Fingerprints

Formation of Fingerprints All fingerprints are divided into three classes on the basis of the general pattern: July 27, 2019 Fingerprints

Formation of Fingerprints All fingerprints are divided into three classes on the basis of the general pattern: Loops Whirls arches July 27, 2019 Fingerprints

Formation of Fingerprints All fingerprints are divided into three classes on the basis of the general pattern: Loops July 27, 2019 Fingerprints

Formation of Fingerprints All fingerprints are divided into three classes on the basis of the general pattern: Loops Whirls July 27, 2019 Fingerprints

Formation of Fingerprints All fingerprints are divided into three classes on the basis of the general pattern: Loops Whirls Arch July 27, 2019 Fingerprints

Formation of Fingerprints The individuality of the fingerprint is determined not by its general shape or pattern, but by the careful study if it’s ridge characteristics. July 27, 2019 Fingerprints

Fingerprint Removal The expert must demonstrate a point by point comparison in order to prove the identity of an individual. July 27, 2019 Fingerprints

July 27, 2019 Fingerprints

Leaving a Fingerprint When the finger touches the surface, perspiration and oil’s are transferred onto that surface, leaving a fingerprint.  July 27, 2019 Fingerprints

Latent Prints Prints deposit in this manner or invisible to the eye and are commonly referred to as latent or invisible prints. Picture of a man who’s toe skin was use to replace is fingertips. Doctor who performed the operation was sentence to prison July 27, 2019 Fingerprints