Patent Fingerprints
Visible fingerprints that are left on a smooth surface when blood, ink, or some other liquid comes in contact with the hands and is then transferred to that surface
Plastic Fingerprints
Actual indentations left in some soft material such as clay, putty, or wax
Latent Fingerprints
Surface fingerprints that are caused by the transfer of oil onto a surface
In the friction ridges of the skin
The imprint of a fingerprint consists of natural secretions of the sweat glands that are present
Arches, loops, whorls
Fingerprint characteristics are named for the visual appearance and patterns, such as (3)
core and deltas
Two things a forensic examiner looks for in a fingerprint
plain whorl, double loop whorl and central pocket whorl
Fingerprint whorl patterns may be
plain arches
Fingerprint arches may be
Minutiae
Every individual had a unique fingerprint resulting from the unique ridge patterns called
Arch
A fingerprint pattern in which the ridge pattern originates from one side of the print and leaves from the other side
Core
A center of a loop or whorl
Delta
A 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
The combination of details in the shapes and positions of ridges in fingerprints that make each unique also called ridge characteristics
Ridge Pattern
The recognizable pattern of ridges found in the end joints of fingers that form lines on the surfaces of objects in a fingerprint
Ten Card
A form used to record and preserve a person's fingerprints
Whorl
A fingerprint pattern that resembles a bull's eye
Ninhydrin
To recover a fingerprint from a surface that is not smooth and hard requires different chemicals. The chemical used for paper is...
Cyonacrylate
Chemical used on household items
Silver Nitrate
Chemical used on wood and styrofoam
Iodine Fuming
Chemical used on paper, cardboard, and unpainted surfaces
Super Glue
It is possible to lift fingerprints using a fuming method involving which household product