Fingerprint Test

% of each type of fingerprint

They are unique, they can never change, they have ridge

characteristics which allow for classification.

Origin of fingerprints

Minutiae

Hidden fingerprint

3-D fingerprint

Visible

All fingerprints must be:

IAFIS

How to correctly roll inked prints

Had workers sign contracts with hand prints; fingerprints don’t change over time, and are unique

The _____ System (based on presence/absence of whorls

Scientific name for a fingerprint

legal minimum for match in court

how many minutiae in each print on average

what codes for class patterns

where are fingerprints formed

Digital machine used to take fingerprints

First to describe loops, whorls and arches

Policeman who abolished anthropometry in favor of fingerprints in Argentine; 1st one to do so

little finger opening

Thumb side of hand opening

both prisoners at Leavenworth; identical body

measurements (Bertillon measurements), but different fingerprints – US finally adopted fingerprinting

and discarded anthropometry in favor of fingerprinting as way to identify people. _____ were either

identical twins or cousins; most likely given away at birth as they did not know each other.

Came up with anthropometry; first “mug shots” – body measurements.

For Non-Porus surfaces

Sticks to Oil and sweat

many different colors

Best on paper

Reacts w/ Amino Acids

Permanent Purple

Cardboard and Porus Surface

Interacts w/ oils and Carbs in a fingerprint

Temporary orange prints reacts with starch solution and turns purple and permanant

Plastic, Metal, glass

put inside a fuming chamber, settles on amino acids

Permanent white print

Wood + Styrofoam

interacts w/ NACL formed from sweat

black/reddish brown print