Fingerprints

Front

What is the main purpose of fingerprints in forensic science?

Back

Fingerprints are used for identification purposes, as they are unique to each individual and can link a suspect to a crime scene.

Front

What are the three main types of fingerprint patterns?

Back

The three main types of fingerprint patterns are loops, whorls, and arches.

Front

What is a loop fingerprint pattern?

Back

A loop fingerprint pattern is characterized by ridges that enter from one side, loop around, and exit the same side.

Front

What is a whorl fingerprint pattern?

Back

A whorl fingerprint pattern consists of circular or spiral ridges that form a complete circuit.

Front

What is an arch fingerprint pattern?

Back

An arch fingerprint pattern features ridges that rise in the center, creating a wave-like appearance.

Front

What percentage of the population has loop fingerprints?

Back

Approximately 60-70% of the population has loop fingerprints.

Front

What is the significance of the ulnar loop?

Back

The ulnar loop is a type of loop fingerprint that opens towards the little finger (ulnar side) of the hand.

Front

What is the significance of the radial loop?

Back

The radial loop is a type of loop fingerprint that opens towards the thumb (radial side) of the hand.

Front

What is the purpose of iodine fuming in fingerprint analysis?

Back

Iodine fuming is used to visualize latent fingerprints on porous surfaces by creating a temporary brown/orange color.

Front

What is ninhydrin used for in fingerprint analysis?

Back

Ninhydrin is a chemical used to develop latent fingerprints on porous surfaces, producing a purple-blue color.