What Is Plain Whorl

[′plān ‚wərl] (forensic science) A whorl fingerprint pattern that has two deltas and at least one ridge making a complete circuit, which may be spiral, oval, circular, or any variant of a circle.

What are the 4 types of whorls?

• Plain (concentric circles),
• Central pocket loop (a loop with a whorl at the end),
• Double loop (two loops that create an S-like pattern)
• Accidental loop (irregular shaped).

What is the rarest fingerprint type?

1: The Arch. Plain Arch – Raised ridges characterize this pattern and they extend from one side of the finger to the other in a continuous fashion. This pattern makes up a mere 5% of the total population, making it the rarest type.