What defines plastic prints?

Plastic prints are specifically characterized as three-dimensional impressions left in a soft substance, such as clay, wax, or any malleable material. This definition highlights the unique feature of plastic prints, which is the physical depth and detail that can be captured, setting them apart from other types of fingerprint evidence.

In the context of forensic science, understanding the different types of prints is crucial for investigations. Unlike latent prints, which are typically invisible and require special techniques (like powder or chemicals) to be visualized, plastic prints are tangible and can be directly examined, allowing for various methods of collection and analysis. The characteristics of the material in which a plastic print is made can often help in linking a suspect to a crime scene.

The other options reference different types of prints that lack the specific characteristics of plastic prints. For example, invisible prints detected with UV light are generally latent prints, which do not leave a three-dimensional impression. Impressions made on glass surfaces may refer to prints that can be visible or latent, but again, they do not encapsulate the three-dimensional aspect of plastic prints. Similarly, latent prints found on paper are typically two-dimensional and do not have the substance depth that defines plastic prints.