PRIVACY ISSUES: CONSTITUTIONAL IMPLICATIONS OF POLYGRAPH TESTS IN INDIAN LAW ENFORCEMENT INVESTIGATIONS
AUTHOR – REHATJIT KAUR, PH.D RESEARCHER AT RAJIV GANDHI NATIONAL UNIVERSITY OF LAW, INDIA
BEST CITATION – REHATJIT KAUR, PRIVACY ISSUES: CONSTITUTIONAL IMPLICATIONS OF POLYGRAPH TESTS IN INDIAN LAW ENFORCEMENT INVESTIGATIONS, INDIAN JOURNAL OF LEGAL REVIEW (IJLR), 5 (1) OF 2025, PG. 871-882, APIS – 3920 – 0001 & ISSN – 2583-2344.
Abstract
With the evolution of society and technology, the offenders of crimes are finding ways to get away with heinous crimes. The crime investigation system relies upon perceivable evidence and is not trained for investigation, which includes the tools of forensic science, making it easier for the offenders to hide their crimes. The increase in the heinous crime rate reflects the failure of the deterrent theory of punishment. Forensic science assists crime investigations by analyzing physical evidence, such as DNA, fingerprints, and ballistics, helping to establish facts, identify suspects, and support legal proceedings. Although India does not have any specific legislation on the use of forensic tools in crime investigation, Bhartiya Nyaya Sanhita, 2023 and Bharatiya Sakshya Adhiniyam, 2023 deal with how forensic evidence can be recorded and presented before the Court of Justice. Many countries worldwide have started using these tools in crime investigation, but numerous contagious issues arise concerning the use of such methods. Applying the polygraph test, one of the forensic tools gives an edge in investigation and development in the field and would restore the faith and trust of the public in the justice system. The privacy issues always revolve around the use of polygraph tests, which are beautifully protected by the fundamental rights inculcated in the Constitution of India, and then the apex court of the country has also put forth some guidelines through precedents.
Keywords: crime investigation, forensic science, polygraph test, right to privacy.