![]() Plain whorls make a complete circuit where you are able to draw an imaginary line between the two deltas that touches a whorl ridge. ![]() Whorls contain two deltas and there are four subcategories. A whorl pattern consists of a series of circles inside each other. The second most common fingerprint pattern is the whorl. If the loop pattern flows in from the thumb side than it is a radial loop while if it flows in from the pinky side than it is an ulnar loop. There are two subcategories of loops known as ulnar loops and radial loops. ![]() A delta is when the ridges of the fingerprint pattern form together to make a triangle shape. Loops flow in on one side of the finger, loop around, and exit on the same side of the finger that the patter entered on. Loops are the most common of the three and make up about 70% of all fingerprints. To start, there are three main types of fingerprint patterns, Loops, Whorls, and Arches. Although analyzing fingerprints seems like a simple task, they are actually very complex pieces of evidence. If a person who was previously convicted of a crime commits another offense and leaves behind a fingerprint, even just a partial print, AFIS would be able to match that print with their prints already in the system. AFIS stands for the Automated Fingerprint Identification System and works by comparing an unknown fingerprint to those of 70 million known criminals. one loop exiting from left side and one from right side.With today’s technology, determining the individual who left behind a fingerprint can be as easy as scanning the fingerprint in question into a computer and finding a match. The pattern is made by either overlapping or surrounding one another and both the loops after terminating exiting from the both sides of the delta. TWIN LOOP: This is often also a double loop pattern.This is often basically a double loop pattern in which two loops are formed either by overlapping or surrounding one another and both the loops after terminating exiting from the same side of the delta.In this pattern majority of the ridges forming a loop but at the center one or more ridges within the pattern are forming an whorl or pocket like structure. CENTRAL POCKET LOOP: the central pocket loop is a combination of a loop and a whorl.COMPOSITE: the composites are combinations of all the above mentioned patterns. It has at least one ridge forming complete trip may be in the form of spiral, oval, circle. ![]() Plain whorl posses a type line and at least two deltas. WHORL: Almost 30-35 % populations have whorl pattern.
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