Spectroscopy: An essential tool in biological evidence identification in forensics

Abstract

Forensic investigation is the gathering and analysis of crime-related evidence to find the
suspect. Usually, in cases of sexual assault and child abuse, biological evidence like saliva,
semen or vaginal fluid can be found.
And this biological evidence at the crime scene such as saliva stains, blood, urine, etc.
can be detected using forensic light (spectroscopic technique) which is based on the natural
character of absorption of light (blood) and fluorescence (saliva, urine, blood). Which can further
be used for DNA fingerprinting This paper focuses on the advantages and limitations of various
spectroscopic techniques