Forensics Fingerprints quiz

Dactyoscopy

study of fingerprints

Herschel did…

required Indians to put their fingerprints on contracts; means of identifying prisoners

Faulds did…

claimed that fingerprints dont change over time

Bertillon…

body measurements as a means of identification; termed anthropometry

Galton was…

“daddy” of identification of loops, whorls, and arches

Herry did..

Numerical classification system

Vucetich

developed fingerprint classification that’s used in Spanish speaking countries

AFIS

Automated fingerprint identification system

-Began in early 1970s

by 1990s most jurisdictions had their own system

what was the problem with AFIS?

a persons fingerprint may be in one AFIS but not others

IAFIS

The FBI’ s Integrated AFIS system, a national data base

What are fingerprints? (M/C) (T/F)

-Formed at the begining of the 10th week of gestation (MC)|

-Happens in the basal layer of the skin(TF)

-protected by the outer layer of the epidermis (TF)

Fundamental Principles of fingerprints: (TF)

-fingerprint is an individual characteristic

-will remain unchanged during a person’s lifetime

-have general characteristic ridge patterns that permit them to be systematically classified

Name all ridge characteristics:

Ridge ending, biforcation, island, dot, bridge, hook, eye, enclosure, double biforcation, delta, triforcation, specitality, core, crossover

characteristic of the arch pattern and its 2 types

enter on one side of the finger and cross to the other side while rising upward in the middle

-do NOT have any type of lines, deltas, or cores

2 types: Plain, tented

characteristic of the Loop pattern and its 2 types

-must have one or more ridges entering and exiting from the same side

-MUST HAVE one delta

2 types: Radial: opens towards the thumb;

Ulnar: opens towards the pinky

characteristic of the whorl pattern and its 4 types

-plain or central pocket; at least 1 ridge that makes a complete circuit.

-have at least 1 delta and a core

4 types: plain, central pocket, double loop, accidental