Role Of Forensic Science in Criminal Investigation: A Critical Study

ABSTRACT

Forensic science plays a pivotal role in criminal investigations, offering scientific methods and techniques to help law enforcement agencies collect, preserve, analyze, and interpret physical evidence. By applying principles of various scientific disciplines—such as biology, chemistry, physics, and medicine—forensic science provides objective insights that are critical for solving crimes. In criminal investigations, forensic evidence can link a suspect to a crime scene, identify victims, establish cause of death, or even exonerate innocent individuals. Key aspects of forensic science include the analysis of DNA, fingerprints, toxicology, ballistics, trace evidence (such as hair, fibers, or soil), and digital forensics (involving electronic evidence). The chain of custody and evidence handling protocols are essential to maintaining the integrity of forensic evidence, ensuring that it can be reliably used in court. While forensic science has revolutionized criminal investigations, it is not without its challenges. Issues such as improper evidence handling, lack of standardization in forensic procedures, and resource constraints in laboratories can affect the reliability and admissibility of forensic evidence in legal proceedings. Moreover, emerging technologies in forensic science—such as genetic genealogy and digital forensics—present both opportunities and challenges in terms of legal acceptance and scientific validation. The use of forensic evidence in the courtroom is governed by legal standards, primarily outlined in statutes like the Indian Evidence Act, 1872. However, challenges arise when new forensic methods lack judicial precedents, or when expert testimony on complex scientific matters is questioned. Despite these hurdles, forensic science remains a cornerstone of modern criminal justice systems, providing vital tools to uncover the truth and ensure justice is served.