Fingermarks may be found on various surfaces at a crime scene. Thus, fingermark detection is of great importance in criminal investigations. Porous surfaces, such as paper, as well as many types of evidence at a crime scene, such as official documents, letters, cheques, bills, invoices, cigarette roll papers, and banknotes, are generally made up of cellulosic materials. Therefore, the detection of latent fingermarks is extremely important in forensic investigations [1]. Latent fingermarks are generated by a small amount of natural secretion from the skin. These secretions comprise many organic and inorganic compounds, such as amino acids, proteins, Na + , K + , and