ASIS Professional Certified Investigator Practice Exam 2026 – Complete Study Guide

The correct choice identifies "dust fingerprint" as not being a recognized type of fingerprint. In forensic terminology, there are three main types of fingerprints: plastic, visible, and latent.

Plastic fingerprints are three-dimensional impressions left in soft materials, such as wax or clay, making them uniquely identifiable and useful in forensic investigations. Visible fingerprints, on the other hand, are those that are visible to the naked eye and usually result from fingers being coated in a substance like ink or blood.

Latent fingerprints are those that are not immediately visible and require processing to be seen, typically made clear by using powders or chemical methods to develop them.

The term "dust fingerprint" does not correspond to standard fingerprint classifications in forensic science, which is why it is considered the correct answer here. It is important to recognize these distinctions to understand the techniques used in fingerprint identification and evidence collection effectively.