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Ridge Counting Rule Continued

by: Chelsey Smith

Ridge Counting Rule Continued FSC 340

Chelsey Smith
GPA 3.9

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About this Document

These notes cover the rules of ridge counting and include examples to help clarify the points.
Dr. Dean Bertram
Class Notes
fingerprint, Forensic, Science
25 ?




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This 2 page Class Notes was uploaded by Chelsey Smith on Wednesday September 28, 2016. The Class Notes belongs to FSC 340 at University of Southern Mississippi taught by Dr. Dean Bertram in Fall 2016. Since its upload, it has received 11 views. For similar materials see Fingerprinting in Forensic Science at University of Southern Mississippi.


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Date Created: 09/28/16
FSC 430- Fingerprinting September 27, 2016 Loops- Ridge Counting Continued When counting ridges, a looping type ridge must be crossed 3. Fragments and dots are counted as ridges only if they appear as thick as surrounding ridges. 4. If you cross the arms of a bifurcation, count it twice. 5. If the delta is on the only loop, there is not ridge count. (goes back to requirements for loops) 6. White space must intervene between delta and the first ridge count. Print on left: the bifurcation does not open to the core so it is not used as a delta Print on right: the delta is placed on a bifurcation opening to the core 7. If the delta is above the shoulders of single looping ridge, and the core is on the shoulder, there is no ridge count unless the imaginary line cuts the recurve. 8. Natural and unnatural breaks in ridges. The distinction is up to the judgment of the individual classifier.


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