What type of evidence can be categorized as latent impressions?

Latent impressions refer to evidence that is not immediately visible to the naked eye and requires special techniques for detection or enhancement. These impressions are typically created when an object comes into contact with a surface, leaving a mark that captures details from the object itself.

Handwriting and typing marks qualify as latent impressions because they can be both visible and not immediately apparent without analysis. When these marks are made on paper or other surfaces, they may not always be easy to discern without additional processes, such as applying different lighting techniques or utilizing chemical substances to enhance the visibility of the markings. This aligns with the nature of latent evidence, which denotes that while the impression may exist, it may not be readily apparent.

In contrast, visible fingerprints are not classified as latent impressions since they are, by definition, detectable without enhancement. Similarly, handwritten notes, while potentially containing valuable information, are considered direct evidence rather than latent impressions. Those impressions formed solely through physical contact with surfaces are often physical impressions that can be seen without additional processing, thus not fully aligning with the definition of latent evidence.