What is used to enhance latent prints on various surfaces?

The correct choice for enhancing latent prints on various surfaces is print powder. This method is widely used in forensic science because print powder adheres to the moisture and oils left behind by fingers, making the latent prints more visible. When applied to a surface where fingerprints may be present, the powder clings to the impressions, allowing investigative personnel to lift and preserve these prints for further analysis.

This technique can be effective on various surfaces, including non-porous materials like glass, metal, or plastic, where latent prints can be otherwise difficult to detect. Various types of print powders are available, tailored to specific surfaces or conditions to optimize visibility.

Others in the list do not serve the same purpose as effectively as print powder. Black ink, fingerprint solution, and ink powder are not standard materials used in the enhancement of latent prints in the same manner as print powder.