DNA Evidence and the Right to Privacy: Legal Implications in Criminal Investigations

The role of forensic evidence in criminal investigations is very crucial. They are highly accurate and often assist in identifying criminals based on the evidence they leave behind. Our bodies contain a unique biological blueprint known as DNA, also known as Deoxyribonucleic acid. A person's identity can be determined by this component, which is present in all cells in their body. Unless two individuals are identical twins, their DNA cannot be the same. DNA profiles are used to identify perpetrators of crime whose cells, hair strands, blood, tissues, semen, or body fluids have been unintentionally left behind at the scene of crime. As a result, issues relating to the right to privacy and the right against self-incrimination have arisen from the application of this data. Such DNA evidence often raises the question of whether it is significant enough to impair the basic rights provided by the Constitution due to its evidentiary value. Since the last few years, DNA evidence has increasingly been used in Indian criminal investigations to identify suspects and exonerate innocent people. The scientific advancement is however concerned with the right to privacy under Article 21 of the Indian Constitution. When DNA data is collected, stored, and analyzed, the sensitive personal information is collected, stored, and analyzed, which can compromise privacy. Although DNA evidence can greatly aid in the pursuit of justice, it must be handled with strict safeguards to ensure constitutional protection. It is important for privacy protections to be strengthened in this context by establishing consent and oversight mechanisms. When the needs of law enforcement and the fundamental right to privacy are balanced, DNA evidence can serve justice without infringing the individual freedoms.