fingerprints
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Explain the Bertillon system
identified people with body measurement (height, reach, width of the head, length of left foot)
Evidence say that fingerprint’s individuality was first recognized during _______
prehistoric time
in ____, William ____ suggests that fingerprints don’t change over life
1858 Herschel
Henry ____ suggests that fingerprints ____
Faults can be used to identify one person
Francis _____ publishes a textbook and ______
Galton types of fingerprints
In ___, Edward ____ invents ________ that we still use today
1899 Henry system classification
A fingerprints is ____ and ____ shared by two people
individual not
The skin of the fingertips ____ after _____. If major damage ____ can be used to identify people
repair burn or shaving scars
The valleys of the fingerprints = _____ The mountains of the fingerprints=_____
grooves friction ridges
The friction ridges help with _______
friction/grip
Our skin secretes/picks up ___. Some of it is left behind when we touch stuff making a replica of ______
oil the pattern of friction ridges
Name the 3 types of fingerprints
arch loop whorls
___ of the population has arch
5%
what are the two type of subgroups in arch
plain and tented
_____ of the population has loops
60-65%
_____ is when the loop points to the side of the thumb ____ Is when the loop points to the side of the pinky
radial ulnar
___ of the population has whorls.
30-35%
Name the four types of whorls?
Plain whorls central pocket loop whorls double loop whorl accidental loop whorl
when a ridge is a straight line we say it is a …
ridge ending
when a ridge seperates in two comme un fer a cheval we say it…
bifurcation
when a ridge seperates in two then reunites in one straight line we say it is…
a lake
When there is a small, lonely, line we say it is an…
independant ridge
when there is a small dot we call it a …
dot or island
when a line emerges from a straight line and leaves in another direction we call it a…
spur