Visualization of Fingerprints

Abstract

Visualization of latent fingerprints is carried out using a variety of optical, physical, chemical and physico-chemical methods. The technique(s) applied typically depend on the porosity of the surface (substrate), beginning with optical techniques and proceeding to more elaborate or destructive methods as necessary. While a vast range of visualization methods are currently available for routine use, constant developments are required to meet ongoing challenges including the proliferation of new surface types, availability of key reagents and the needs of jurisdictions with limited resources.