Which laser procedure has been developed for the examination of skin in latent print analysis?

In the context of latent print analysis, the laser procedure developed for the examination of skin is vapor staining with rhodamine 6G. This technique is particularly effective because rhodamine 6G is a fluorescent dye that can bind to the lipids and proteins present in latent fingerprints, enhancing visibility under specific lighting conditions, such as when exposed to laser light.

Vapor staining allows for a more detailed examination of impressions left on skin surfaces, improving the ability to visualize and subsequently capture latent prints that would otherwise be difficult to detect. This method can reveal intricate details of the fingerprint pattern, aiding in identification and comparison during forensic investigations.

The other methods listed, while useful in broader contexts of forensic analysis, do not specifically address the unique needs of latent print examination on skin. Fluorescent staining generally refers to broader applications of enhancing visibility under certain light conditions, while infrared imaging and UV light exposure are more about capturing images or patterns that may not be as relevant for soft skin surfaces as opposed to harder surfaces where latent prints are typically found.