The detection and visualization of latent fingerprints is a challenging subject when the marks are faint with small residue and the latent finger mark is on highly reflecting surfaces. The surface where the fingerprint is located may present many physical and optical constraints, such as large reflectivity and scattering due to roughness and high background fluorescence. A variety of physical and chemical treatments like powder dusting [1], vacuum metal vapor deposition [2,3], vacuum cyanoacrylate fuming [4], exposure to dyes [5] and nanoparticles [6,7] have been developed for the detection and visualization of fingerprints on various kinds of surfaces. Additionally, optical techniques like oblique angle illumination have been successfully used for visualization of fingermarks on smooth glass and mirror surfaces [8].
Advanced techniques like scanning Kelvin microprobe imaging that depends on the electrolytic salts present in the fingerprint residues have been successfully used [9] on metallic surfaces. Bond [10] studied the development of latent fingerprints through corrosion on brass surfaces, particularly after exposure to enhanced temperatures. The capability of visualizing latent prints