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forensics ch. 6

TermDefinition
arch fingerprint pattern in which the ridge patterns originates from one side of the print and leaves from the other
core center of a loop or whorl
delta triangular ridge pattern with ridges that go in different directions above and below a triangle
fingerprint an impression left on any surface that consists of patterns made by the ridges on a finger
latent fingerprint a hidden fingerprint made visible through the use of powders or other techniques
loop a fingerprint pattern in which the ridge pattern flows inward and returns in the direction of the origin
minutiae combination of details in the shapes and positions of ridges in fingerprints that make each unique, also called ridge characteristics
patent fingerprint visible fingerprint that happens when fingers with blood, ink, or some other substance on them touch a surface and transfer the pattern of their fingerprint to that surface
plastic fingerprint a three dimensional impression cast in soft materials such as clay, soap, or putty
ridge pattern recognizable patterns of the ridges found in the end joints of fingers that form lines on the surface of objects in a fingerprint, they fall into 3 categories; arches, loops and whorls
ten card a form used to record and preserve a person's fingerprints
whorl fingerprint pattern that resembles a bull's eye
fork bifurication
spur hook
IAFIS or AFIS provides digital, automated fingerprint searches, latent searches, electronic storage of files and electronic exchange of fingerprints and test results
4 chemical methods used for visualizing latent fingerprints Ninhydrin, cyanoacrylate vapor, silver nitrate, Iodine fuming
Created by: mrsklann