With the rise of nanotechnology, new innovative potential approaches have been studied. For example, Sametband et al. (2007) reported the use of gold and CdSe/ZnS nanoparticles dissolved in organic solutions; the former detects cotinine, a metabolite of nicotine in fingermark residues, while the later acts as fluorescent dye. This agent can help to identify the criminal as a smoker. Menzel et al. (2000) reported using Cadmium sulphide and Europium (III) oxide based powder to visualize fingerprints. However these methods are complex and require specialist technical development. These materials are also expensive. More recently Theaker et al. (2008) reported doping of nanoscale silica particles, synthesized by hydrolysis of a mixture of tetraethoxysilane (TEOS) and phenyltriethoxysilane (PTEOS) in basic condition. A variety of colored and fluorescent agents were embedded in the silica particles, which possess hydrophobic surfaces due to the organosilane employed, and act as latent fingerprint development agents. A potential problem with this process is that due to the porous nature of silica synthesized by this or similar processes, solvent may easily penetrate into the silica spheres and remove dye molecules, thus causing some level of dye leakage