Fingerprint Evidence: Classifying Fingerprints

Front

What is a fingerprint loop that opens towards the pinky on the right hand called?

Back

Ulnar loop

Front

How many deltas are found in a whorl fingerprint?

Back

2 or more

Front

What is a ridge line that comes in from one side, goes up, around, and back out the same side called?

Back

Loop

Front

What type of arch fingerprint rises to a point in the middle and comes in from one side and goes out the other?

Back

Tented arch

Front

What is the name of the loop that opens toward the thumb on the left hand?

Back

Radial loop

Front

What are the two main types of fingerprint patterns?

Back

Loops and whorls

Front

What is the defining characteristic of a plain arch fingerprint?

Back

Ridge lines that rise in the center but do not form a point.

Front

What is the difference between a radial loop and an ulnar loop?

Back

A radial loop opens towards the thumb, while an ulnar loop opens towards the pinky.

Front

What is the purpose of deltas in fingerprint classification?

Back

Deltas help in identifying and classifying fingerprint patterns.

Front

What is a whorl fingerprint?

Back

A fingerprint pattern that has circular or spiral ridges.