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Articles from The Science Of Fingerprints

Death Notices

Latent Fingerprints

Temporary Disabilities

Deceased Infants

Powdering And Lifting Latent Impressions

Filing Sequence

Technical Consideration

Establishment Of A Local Fingerprint Identification Bureau

Preparation Of Fingerprint Charts For Court Testimony

Desiccation And Charring


Types Of Patterns





Fingerprints may be resolved into three large general groups of
patterns, each group bearing the same general characteristics or
family resemblance. The patterns may be further divided into
sub-groups by means of the smaller differences existing between the
patterns in the same general group. These divisions are as follows:

I. ARCH

a. Plain arch.
b. Tented arch.

II. LOOP

a. Radial loop.
b. Ulnar loop.

III. WHORL

a. Plain whorl.
b. Central pocket loop.
c. Double loop.
d. Accidental whorl.

Illustrations 1 to 10 are examples of the various types of fingerprint
patterns.







[Illustration: 1. Plain arch.]

[Illustration: 2. Tented arch.]

[Illustration: 3. Tented arch.]

[Illustration: 4. Loop.]

[Illustration: 5. Loop.]

[Illustration: 6. Central pocket loop.]

[Illustration: 7. Plain whorl.]

[Illustration: 8. Double loop.]

[Illustration: 9. Double loop.]

[Illustration: 10. Accidental.]





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Previous: The Identification Division Of The Fbi



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