Laser Detection of Latent Fingerprints: Treatment with Glue Containing Cyanoacrylate Ester

It has previously been shown that fuming with glue containing cyanoacrylate ester can be valuable in the development of latent fingerprints. Glue-treated fingerprints can provide improved detail via fluorescence under ultraviolet and blue-green argon-ion laser illumination. In addition, glue treatment can be effectively combined with dusting using fluorescent powder, staining using fluorescent dye, and the ninhydrin/zinc chloride method, together with laser examination.