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GHS Forensics 4

A fingerprint is classified as this type of characteristic Individual
Fingerprints have these types of general patterns that allow them to be systematically identified. ridges
Percentage of people have loops? 60%
Percentage of people who have arches? 5%
Percentage of people who have whorls? 35%
These are the simplest type of fingerprints that are formed by ridges that enter on one side of the print and exit on the other. No deltas are present. Arches
The study of fingerprint identification is called? Dactyloscopy
# of Arch type fingerprints categories 2
# of Loop type fingerprint categories 2
# of Whorl type fingerprints categories 4
These types of fingerprints have at least one ridge that makes (or tends to make) a complete circuit. They also have at least two deltas. Whorls
If prints have more than two deltas or unusual patterns they are called? Accidentals
These types of prints are made up of any two loops combined into one print. Double Loops Whorls
These are impressions left by friction ridge skin from any part of the body on a surface, such as a tool handle, glass, door, etc. latent
The method of collecting prints by revealing them with a black powder and then lifted with a piece of clear tape is called Dusting
The cyanoacrylate fuming method is a procedure that is used to develop latent fingerprints on a variety of objects. This common method uses this household item Superglue
This chemical bonds with the amino acids in fingerprints and will produce a blue or purple color. Ninhydrin
The study of the uniqueness of friction ridge structures and their use for personal identification Ridgeology
Points where the ridge structure change minutiae
When these are found on two different prints to match, these are called points of similarity or points of identification. minutiae
This is a computerized system capable of reading, classifying, matching, and storing fingerprints for criminal justice agencies. AFIS
When using superglue to detect a print the fumes attach to these in the fingerprint Amino Acids
Type of fingerprint made by ridge impressions left on soft material such as putty or wax. plastic
Type of fingerprint made by impressions caused by the transfer of body perspiration or oils present on the finger or other part of body to the surface of an object. latent
Type of fingerprint made after coming in contact with colored material such as blood, paint, grease or ink. visible
Method which allows particles to stick to fingerprints to show their pattern. dusting
This method can be used on a porous or non-porous surface like paper or cardboard. Iodine fuming
The science behind fuming fingerprints Iodine crystals will adhere to the print
Process which reacts with salt to show a blackish brown compounded fingerprint UV Light
Created by: rseneta