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Exam 4: Fingerprint Patterns and Classification

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Question 1

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What features of the volar pad determine the fingerprint pattern type during human fetal development?

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a. Dimensions of the volar pad...

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Question 2

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What is the NCIC classification of an individual with the following pattern types: plain whorls on both thumbs with meet tracings, ulnar loops on the #2-5 fingers with a ridge count of 7, a radial loop on the #7 finger with a ridge count of 13, and ulnar loops on the #8-10 fingers with a ridge count of 11.

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PM07070707PM13111111

Question 3

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Name and describe the two features of most fingerprint patterns.

What is NCIC? What does it contain?

What numerical value is assigned to each finger (#1-10) if the finger contains a whorl pattern?

What technology negated the need for manual classification and filing of hard copies of fingerprint records?

Typelines are the two friction ridges, either continuous or broken, that diverge from the delta in opposite directions and surround the main pattern.

What is fingerprint classification?

What are the various components of primary Henry classification?

Whorls are what percentage of the population of fingerprint patterns?

Describe NCIC classification.

What are accidentals?

Name and describe the most common fingerprint pattern type in the population.

Describe the three classifications of whorl tracings.

Fingerprint pattern types are unique, individualizing features.

What are the three requirements of a loop pattern?

Why is the number one added to the numerator and denominator?

What are the two features of a whorl?

Ridge count refers to the number of friction ridges that cross an imaginary line between the core and delta.

What are the four types of whorls?