Novel O‐propyl, S‐propyl, and N‐propyl substituted 1,4‐naphthoquinones and 1,4‐anthraquinones as potential fingermark development reagents for porous surfaces

Abstract

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

Interpol review of fingermarks and other body impressions (2019 – 2022)

“…Preliminary/Pilot studies – New amino acid reagents were proposed to detect fingermarks on porous substrates: alizarin and purpurin [ 228 ]; 2-substituted-1,4-naphthoquinones and 2-substituted-1,4-anthraquinones [ 229 ]; fluorescent l -tyrosine derivatives [ 230 ]. The addition of liquid glue to a NIN solution (0.02–0.05 g/ml) was proposed to prevent the darkening of thermal papers while allowing NIN to react with fingermarks [ 231 ].…”