Fingerprints Flashcards

1
Q

Chinese

A

Used fingerprints to sign legal documents as far as 3000 years ago

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2
Q

William Herschel

A

English servant required natives to sign contacts with an imprint of their right hand

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3
Q

Henry fails

A

Wrote that skin ridge patterns could be important in identification
System was rejected in favor of bertillion system

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4
Q

Alphonse bertillion

A

First systemic attempt at personal identification was devised

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5
Q

Portraita parle

A

Detailed description of the individual

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6
Q

Anthropometric

A

System of predict body measurements
11 measurements taken to include height length of foot

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7
Q

William west

A

Couldn’t be distinguished from inmate with same name by anthropemtry

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8
Q

Facts

A

No 2 people age the same exact point
Unchanged for the life of the individual
Have ridges that allow them to be systematically identified

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9
Q

Arch

A

Plain arch
Tented arch

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10
Q

Loop

A

Radial
Ulnar

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11
Q

Whorl

A

Plain
Central pocket
Double
Accidental

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12
Q

Percent of loops

A

60

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13
Q

Percent of whorls

A

35

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14
Q

Percent of arch

A

5

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15
Q

Plain arch

A

Ridges enter on side and exit on the other side

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16
Q

Tented arch

A

Similar to plain arch but have a spike in the center

17
Q

Radial loops (right hand)

A

Loop opens toward the thumb (radius)

18
Q

Ulnar loop (right hand)

A

Loop opens toward the little finger (ulna)

19
Q

Loops

A

Must have one delta and one or more ridges that enter and leave on the same side

20
Q

Whorls

A

Have at least one ridge and have at least 2 deltas

21
Q

Accidental

A

More than 2 deltas

22
Q

Plain whorl

A

If curved ridges touch the line

23
Q

Central pocket

A

If none of the center core touches the line

24
Q

Double loop

A

Made up of any 2 loops combined into 1 print

25
Q

No deltas

A

Arch

26
Q

1 delta

A

Loop

27
Q

2 or more deltas

A

Whorl

28
Q

Latent

A

Can’t see invisbile

29
Q

Patent

A

Left behind ( blood)

30
Q

Plastic

A

Mold (wax)