Forensics Unit 4 Fingerprints

this is a concentric pattern. The pattern is slanted towards the radial bone, the thick bone on the thumb side of the hand. 

• radial loop
• ulnar loop
• double loop
• plain whorl

this the most common pattern and is made up of ridges that resemble hairpins or staples. It slants towards the small bone of the arm, the ulna, on the same side as the little finger. 

• radial loop
• ulnar loop
• central pocket
• plain whorl

this pattern resembles a church steeple 

• tented arch
• accidental whorl
• plain arch
• central pocket

this is a circular spiral pattern

• accidental whorl
• double loop
• central pocket
• plain whorl

this is an irregular circular pattern

• accidental whorl
• double loop
• central pocket
• plain whorl

this is a two looped pattern

• radial loop
• double loop
• ulnar loop
• plain whorl

this is characterized by a tight circular pattern in the center of the print

• tented arch
• double loop
• central pocket loop
• plain whorl

65% of the population has this type of pattern

• loops
• whorls
• arches
• ripples

Tags

NGSS.MS-LS4-4

30% of the population has this type of pattern

• loops
• whorls
• arches
• ripples

Tags

NGSS.HS-LS4-3

5% of the population has this type of pattern

• loops
• whorls
• arches
• ripples

Tags

NGSS.MS-LS4-4