What is often one of the first processes used in a fingerprint examination?

In fingerprint examination, fluorescence examination is often one of the initial processes used for detecting latent prints. This technique utilizes light to fluoresce certain substances that may be present in the fingerprint residues, allowing for the visualization of prints under specific lighting conditions.

When prints are deposited onto surfaces, they can sometimes contain proteins, lipids, and other organic materials. The fluorescent examination enhances the contrast between the print and the background, making it easier to identify and document before further processing steps are taken.

The other procedures mentioned, while also essential in the overall fingerprint examination process, are generally implemented after a preliminary examination has provided leads on potential areas of interest. Small Particle Reagent is often used on wet surfaces, while Ninhydrin Treatment and Physical Developer focus on developing prints on porous and non-porous surfaces after initial visualizations.