fingerprints

Question 1

Explain the Bertillon system

Answer 1

identified people with body measurement (height, reach, width of the head, length of left foot)

Question 2

Evidence say that fingerprint’s individuality was first recognized during _______

Answer 2

prehistoric time

Question 3

in ____, William ____ suggests that fingerprints don’t change over life

Answer 3

1858

Herschel

Question 4

Henry ____ suggests that fingerprints ____

Answer 4

Faults

can be used to identify one person

Question 5

Francis _____ publishes a textbook and ______

Answer 5

Galton

types of fingerprints

Question 6

In ___, Edward ____ invents ________ that we still use today

Answer 6

1899
Henry
system classification

Question 7

A fingerprints is ____ and ____ shared by two people

Answer 7

individual

not

Question 8

The skin of the fingertips ____ after _____. If major damage ____ can be used to identify people

Answer 8

repair
burn or shaving
scars

Question 9

The valleys of the fingerprints = _____

The mountains of the fingerprints=_____

Answer 9

grooves

friction ridges

Question 10

The friction ridges help with _______

Answer 10

friction/grip

Question 11

Our skin secretes/picks up ___. Some of it is left behind when we touch stuff making a replica of ______

Answer 11

oil

the pattern of friction ridges

Question 12

Name the 3 types of fingerprints

Answer 12

arch
loop
whorls

Question 13

___ of the population has arch

Answer 13

5%

Question 14

what are the two type of subgroups in arch

Answer 14

plain and tented

Question 15

_____ of the population has loops

Answer 15

60-65%

Question 16

_____ is when the loop points to the side of the thumb

____ Is when the loop points to the side of the pinky

Answer 16

radial

ulnar

Question 17

___ of the population has whorls.

Answer 17

30-35%

Question 18

Name the four types of whorls?

Answer 18

Plain whorls
central pocket loop whorls
double loop whorl
accidental loop whorl

Question 19

when a ridge is a straight line we say it is a …

Answer 19

ridge ending

Question 20

when a ridge seperates in two comme un fer a cheval we say it…

Answer 20

bifurcation

Question 21

when a ridge seperates in two then reunites in one straight line we say it is…

Answer 21

a lake

Question 22

When there is a small, lonely, line we say it is an…

Answer 22

independant ridge

Question 23

when there is a small dot we call it a …

Answer 23

dot or island

Question 24

when a line emerges from a straight line and leaves in another direction we call it a…

Answer 24

spur

Question 25

when a line travels between two parallel lines we call it...

Answer 25

crossover

Question 26

what is the goal of forensic fingerprinting?

Answer 26

Comparing two fingerprints and determine if they are form the same finger.

Question 27

What is the name of the system that narrows down the number of fingerprints that could match?

Answer 27

Henry system

Question 28

In the henry system, there are ___ fractions. | The ____ and ___ = 0 and the ____ changes depending on which fraction it is.

Answer 28

5 | loop and arch

Question 29

``` Whorl in the henry system is equal to... ___ 1 pair ___ 2 pair ___ 3rd pair ___ 4th pair ____ 5th pair ```

Answer 29

16, 8, 4, 2, 1

Question 30

______ _______ ______ _____ _____ identify each fraction

Answer 30

R in - R ri - L th - L mi - L litt | R thu - R mi - R litt - L in - Lri

Question 31

_____ individual ridges math for complete and ___ ___ for partial match

Answer 31

150 | 8-16

Question 32

What is AFIS

Answer 32

computer cans, stores and look for the same special features a human would - but digitally t analayse fingerprints

Question 33

What is the method to get the print of a suspect?

Answer 33

roll inked fingers on ten-print card. Each finger than palms

Question 34

What is a patent print? How is it processed

Answer 34

material on their finger and leaves a visible print. | Photographed than transferred digitally

Question 35

What is a plastic print

Answer 35

print in a 3D mold left in a soft substance

Question 36

What is a latent print?

Answer 36

Print with oil on the finger, it is invisible

Question 37

Explain the powder method to expose latent prints

Answer 37

Black, grey or fluorescent powder. Magnetically sensitive

Question 38

Explain the laser/UV light method of exposing latent prints?

Answer 38

Makes print glow and has different filters. Doesnt alter the print

Question 39

Explain the chemical reaction way of exposing the prints and why it isnt ideal?

Answer 39

Put chemicals on prints | it is stinky, dangerous and. bad for the environemnt

Question 40

What is Ruvis

Answer 40

a camera, with UV lights, that detects prints and can take pictures of them.

Question 41

What type of brush is used for powdering fingerprints?

Answer 41

Camel and fiberglass

Question 42

Fingerprint tha are powdered will be lifted with...

Answer 42

transparent tape.

Question 43

Name the 4 use of fingerprints in the world.

Answer 43

1) background checks 2) Biometric security (access spaces) 3) Mass disater or amnesiac victims idetification 4) Criminal situations

Question 44

What are the 3 issues with fingerprints

Answer 44

1) need a print to compare to 2) can't identify age, race, gender, etc. 3) can't know how long prints have been there

Question 45

What are the 3 main enemies of fingerprints?

Answer 45

1) dy hands 2) gloves 3) rougher surfaces.

Question 46

What kind of surfaces we use the powder technique and the UV lights?

Answer 46

Hard surfaces such as mirrors, glass, tiles, painted wood

Question 47

What kind of surfaces we use chemical reactions?

Answer 47

porous such as paper, cardboard, and cloth