DNA Is Not a Default: Supreme Court Reaffirms the Legitimacy Presumption, Allows Paternity Tests Only on “Eminent Need”

In a criminal matter where the real controversy did not turn on parentage, the Madras High Court nonetheless directed a DNA test — the kind of casual order that has multiplied as the technology has become routine. The affected party appealed, and the Supreme Court used the case to restate the law that keeps genetic testing exceptional.

The Key Question Before the Court

When may a court order a DNA test that bears on a child's paternity — and what survives of Section 112's presumption in the genomic age?

The Presumption Holds Unless Non-Access Is Proved

Justice Mishra's judgment begins where the statute does: Section 112 declares that birth during a valid marriage is conclusive proof of legitimacy, displaceable only by strong and cogent evidence that the spouses had no access to each other when the child could have been begotten. The provision embodies a policy older than the technology — that a child's status should not swing on suspicion — and courts cannot allow scientific possibility to dissolve a statutory conclusiveness Parliament has retained.

“Eminent Need”, Not Routine Curiosity

On when a DNA test may be ordered, the Court held it can never be a matter of course: the test is permissible only on an eminent need standard — where the issue cannot be resolved on the other evidence — and after balancing the competing interests, including the privacy, dignity and best interests of the persons to be tested, the child above all. Measured so, the High Court's direction failed at the threshold: the offences alleged had no nexus with paternity, making the test both needless and intrusive. The direction was set aside.

What the Court Actually Held

• Section 112's presumption of legitimacy is conclusive, rebuttable only by strong evidence of non-access.
• DNA tests bearing on paternity cannot be ordered as a matter of course.
• The governing standard is eminent need — insufficiency of other evidence — with a balancing of interests including privacy.
• The Madras High Court's DNA direction, having no nexus with the issues, was set aside.

Why This Judgment Matters

• It checks the normalisation of DNA orders in matrimonial, maintenance and criminal dockets.
• It centres the child: legitimacy and privacy are not collateral damage of adult litigation.
• It consolidates the Court's line from Goutam Kundu through Aparna Ajinkya Firodia into a usable two-step test.
• It instructs High Courts that the power to order scientific tests is jurisdictional discipline, not case management.

What Should Advocates Take Away From the Judgment?

For Parties Resisting a Test

• Attack the nexus first — what issue does paternity actually decide? — then invoke Section 112 and the eminent-need threshold with the privacy balance.

For Parties Seeking a Test

• Build the record of non-access and of the insufficiency of other evidence before asking; a bare prayer for DNA now fails as a matter of law.

Key Takeaways

Frequently Asked Questions

No. The court must find an eminent need — that the issue cannot be decided on other evidence — and must balance the interests, including the child's legitimacy and privacy, before ordering a test.

Only by strong, cogent evidence that the spouses had no access to each other at the relevant time — suspicion, estrangement or even infidelity allegations do not suffice.

The alleged offences had no nexus with paternity; a DNA test would have invaded privacy and the child's status without deciding anything in the case.

Conclusion