Exploring Fingerprints

Front

What is the main difference between an arch and a loop fingerprint?

Back

An arch fingerprint has ridges that flow from one side to the other without a core or delta, while a loop fingerprint has ridges that enter and exit on the same side, featuring a core and at least one delta.

Front

What are some challenges in using fingerprints for identification?

Back

Challenges include variability in quality, false positives/negatives, data security, and equipment/training needs.

Front

Why are fingerprint classification systems important in criminal investigations?

Back

Fingerprint classification systems are essential for identifying and matching fingerprints in criminal investigations.

Front

What supports the uniqueness of an individual's fingerprints?

Back

Fingerprints are unique due to their distinct patterns and minutiae that do not change over a person's lifetime.

Front

List two characteristics of loop fingerprints.

Back

1. Unique circular patterns; 2. Varying size and complexity.

Front

What are the three main types of fingerprint patterns?

Back

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

Front

Define 'minutiae' in the context of fingerprints.

Back

Minutiae are the specific features of a fingerprint, such as ridge endings and bifurcations, that help in identifying and differentiating fingerprints.

Front

How does age affect fingerprint patterns?

Back

While the basic patterns remain the same, the clarity and depth of the ridges may change with age due to skin elasticity and wear.

Front

What is the significance of delta in fingerprint analysis?

Back

A delta is a triangular region found in loop and whorl fingerprints that helps in classifying the fingerprint pattern.

Front

Explain the term 'false positive' in fingerprint identification.

Back

A false positive occurs when a fingerprint system incorrectly matches a fingerprint to a person who is not the actual source.