Visualization and Comparison of Latent Fingerprints on Various Surfaces Using Neem and Turmeric Powder

Abstract

In the research, various methods for developing latent fingerprints on various surfaces have been reported. This
paper describes a new powdering method for the development of latent fingerprints that is simple and nontoxic
and can be used on a variety of substrates. In this study, non-toxic, simple, and easily accessible turmeric
powder and Neem powder were used, all of which are commercially available natural powders with a variety
of domestic and traditional applications. These powders have been used to decipher latent fingerprints on ten
different substrates, including glass, lamination sheet, transparency sheet, metal surface, wooden surface, plain
paper, cardboard, plastic, tile, and steel. It has been discovered that it produces very clear results on most surfaces.
The powders were used to give the best results on all surfaces except plain paper. The prints are clear with all the
ridge characteristics present.