1Research Scholar, School of Sciences, Department of Chemistry, Indira Gandhi National Open University, Maidan Garhi, New Delhi
2Professor, School of Sciences, Department of Chemistry, Indira Gandhi National Open University, Maidan Garhi, New Delhi
3Professor, Forensic Science Unit, S.G.T.B. Khalsa College, University of Delhi, Delhi
4Associate Professor, Department of Chemistry, Shaheed Rajguru College of Applied Sciences for Women (University of Delhi), Vasundhara Enclave, Delhi
*Forensic Science Unit, S.G.T.B. Khalsa College, University of Delhi, Delhi-110007 Contact: +91 9891158220 Email: gssodhi@sgtbkhalsa.du.ac.in
Online Published on 17 September, 2022.
Luminescent techniques have been widely used to enhance weak and faint fingerprints that are most commonly encountered at crime scenes. The process involves illumination of the developed prints to a light source, including laser. However, the degree of clarity achieved, the cost of light source, the type of evidence being processed and the nature of luminescent composition are often limiting factors in this endeavour.
Evaluation of cost-effective, non-toxic, fluorescent powder formulations in developing weak, chance fingerprints on a broad spectrum of surfaces is done. The results have been analyzed on the basis of quality of prints and the shelf life of the compositions.
Good quality fingerprints were detected on all surfaces.
Criminalistics, Fingerprints, Fluorescence, Powder Composition, Shelf Life
