Articles from The Science Of Fingerprints
Fingerprint Files
Drying The Fingers
Powdering And Lifting Latent Impressions
Interpretation
The Tented Arch
Preparation Of Fingerprint Charts For Court Testimony
The Use Of The Fingerprint Camera
Record Of Additional Arrest
Whorl Tracing
General Photography
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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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