Forensic application of saliva : Evaluation of association of gender with the refractive index of saliva among the young adults of Western India

Abstract

Biological fluids have been playing a vital role in most of the cases involving the criminal investigation. They
are found to be useful as markers of identification. Though there are plenty of studies available in blood, there are very
less number of studies available on saliva. A study has been undertaken with saliva and has been analyzed without
subjecting it to any chemical and biological examinations. But there was a physical examination done with the parameter
of refractive index. In this study a total of 101 males and 101 females have been considered. From these subjects, the
saliva has been collected and has been analyzed for refractive index. There was a significant difference noted among the
females and males.