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Presumption of Legitimacy

Definition

Statutory presumption that a child born during the continuance of a valid marriage is the legitimate child of the husband. Rebuttable only by proof of non-access (Section 112 IEA 1872 / Section 116 BSA 2023).

Applies to
A child born during a valid, subsisting marriage
Governing provision (India)
Section 112 IEA 1872 / Section 116 BSA 2023
Rebuttal ground
Proof of non-access between the spouses
Standard of proof
Strong, requiring cogent evidence, not a bare denial

Common questions

Can a DNA test alone rebut the presumption?+

Courts have generally required non-access to be shown by other evidence before ordering DNA testing, since the presumption is meant to protect the child's status; a DNA test is not granted merely because a husband disputes paternity without first establishing non-access.

How does non-access differ from simple denial of paternity?+

Non-access means the spouses had no opportunity for marital intercourse during the conception window, for example due to separation or absence; a husband's suspicion or denial of paternity, without evidence of physical non-access, does not meet the rebuttal standard.

Related terms

Combined Paternity Index (CPI)
The product of all individual paternity indices across all marker systems tested. Assumes independence of the marker systems. The CPI is a...
Deficient Paternity Test
Paternity inferred from the alleged father's relatives (grandparents, siblings) when the alleged father himself is unavailable or deceased.
Exclusion
The categorical conclusion that one or more examined features are clearly inconsistent in a way that cannot be explained by projection angle,...
Inclusion
All obligate alleles are accounted for. Inclusion is probabilistic, never absolute, and is reported as a CPI plus probability of paternity.
Motherless Paternity Test
Paternity analysis where the mother's sample is unavailable. CPI thresholds are raised because the obligate paternal allele cannot be inferred from the...
Mutation Rate
STR loci mutate at roughly 0.001 to 0.005 per generation. A single one-step mismatch is typically scored as a possible mutation, not...
Obligate Paternal Allele
The allele in the child's genotype that did not come from the mother and therefore must have come from the biological father.
Paternity Index (PI)
A likelihood ratio that compares the probability of the observed serological profile if the alleged father is the biological father to the...
Probability of Paternity (W)
The posterior probability that the alleged father is the biological father, calculated from the CPI and a prior probability using Bayes' theorem....

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