Paternity dispute is one of the most emotionally charged issues in family law, a man questioning whether a child is truly his, or a mother fighting to prove her child’s parentage for inheritance, maintenance, or simply the truth. Paternity disputes are becoming increasingly common in Nigeria, and DNA evidence is now at the center of how these cases are resolved. If you have ever wondered how this actually works under Nigerian law, this blog breaks it down in plain language.

What is a Paternity Dispute?

A paternity dispute arises when there is disagreement or uncertainty about whether a particular man is the biological father of a child. This can come up in several situations:

1. A husband suspects a child born during the marriage is not biologically his
2. An unmarried mother seeks to establish a man as the father, for child support or inheritance purposes
3. A man denies fathering a child to avoid financial or legal responsibility.
4. Extended family members challenge a child’s right to inherit, claiming the child is not truly related by blood
5. A child, now an adult, seeks to establish their biological father’s identity for personal or legal reasons

These disputes often surface during divorce proceedings, child maintenance applications, inheritance battles, or simply within personal relationships.

The Presumption of Legitimacy

Nigerian law, like many legal systems starts with a basic assumption, a child born during a valid marriage is presumed to be the legitimate child of the husband (Sec 165 of the Evidence Act). This is called the “presumption of legitimacy” or “presumption of paternity.”

This means that if a woman is married and gives birth to a child, the law assumes the husband is the father unless that presumption is successfully challenged with evidence. The burden of disproving paternity falls on whoever is disputing it, and historically, this was difficult to do without scientific evidence.

This is exactly where DNA testing changed everything.

DNA Evidence changed Paternity Cases

Before DNA testing became accessible, paternity disputes relied heavily on circumstantial evidence such as blood group comparisons (which could only exclude, not confirm, paternity), physical resemblance, witness testimony, and timing of conception. None of these were conclusive.

Today, DNA testing can establish paternity with over 99.9% accuracy, and Nigerian courts increasingly accept and rely on DNA evidence when properly conducted. A DNA paternity test typically compares genetic material usually from a cheek swab from the child, the alleged father, and sometimes the mother, to determine biological relationship.

This has made it significantly easier for:

1. Mothers to prove paternity for child support claims
2. Men to disprove paternity where there is genuine doubt
3. Courts to resolve inheritance disputes involving questions of bloodline
4. Children to establish their biological identity, especially in adoption or unknown-parentage situations

What is the stand of the Court on DNA test?

This is one of the most common questions people ask, and the answer is not certain whether a court can force one to undergo a DNA test. In Nigeria, the courts can order DNA testing as part of legal proceedings on the application of one of the parties to the case, particularly in paternity, custody, maintenance, or inheritance cases, where establishing biological relationship is central to the matter before the court.

However, a person generally cannot be physically forced to provide a DNA sample against their will in the way that, say, an arrest can be enforced. What typically happens instead is:

1. The court draws an adverse inference against a party who unreasonably refuses to undergo DNA testing, meaning the court may assume the refusal is because the test would not favor that person
2. Refusal can significantly weaken a person’s case, especially if they are the one disputing paternity without any other compelling evidence
3. In some cases, continued refusal can lead to other procedural consequences, depending on how the presiding judge handles the matter

In practice, refusing a court ordered DNA test rarely helps a person’s case it usually does the opposite and the refusal amounts to contempt of court.

What happens if a husband discovers a child is not his?

This is an emotionally devastating situation, but legally, here is what typically unfolds:

1. If DNA evidence conclusively shows the husband is not the biological father, this can be used to rebut the presumption of legitimacy
2. This may affect the husband’s obligations regarding child maintenance going forward, though courts sometimes still consider factors like how long the husband has acted as the child’s father and what is in the child’s best interest
3. It can also impact inheritance rights, as Nigerian law generally ties inheritance to biological or legally recognized parentage
4. It frequently becomes a contributing factor in divorce proceedings, particularly under grounds relating to matrimonial misconduct of adultery.

Note that courts try to balance biological truth with the best interest of the child, especially regarding emotional and financial stability, so outcomes are not always purely mechanical even with clear DNA results. Section (1) of the Rivers State Child’s Rights Law

CHILDREN BORN OUTSIDE WEDLUCK

For children born outside marriage, there is no automatic presumption of paternity in favor of any man. This means an unmarried mother seeking child support, inheritance rights, or simply legal recognition of fatherhood for her child often needs to:

• Approach the family court to formally establish paternity
• Apply that the alleged father undergoes a DNA test, either voluntarily or through court order
• Provide other supporting evidence such as communication records, financial support history, or witness testimony alongside the DNA result

Once paternity is legally established through DNA evidence, the father becomes legally responsible for child maintenance and the child gains inheritance rights, just as a child born within marriage would.

It is important to note that DNA evidence has become particularly significant in inheritance and estate disputes, especially in polygamous families or where a deceased man’s children from different relationships contest each other’s legitimacy or share of an estate.

Family members sometimes challenge a child’s claim to inheritance by disputing their paternity, especially where there was no formal acknowledgment during the father’s lifetime. In such cases, DNA testing sometimes using samples from surviving relatives if the alleged father is deceased can be used to settle the matter conclusively in court.

If you are considering a paternity dispute, whether to establish or challenge fatherhood, here are a few practical realities:

• DNA testing must be done through accredited, recognized laboratories in Nigeria for the results to hold weight in court. Informal or unverified tests can be challenged.
• How the samples were collected, handled, and tested can be questioned in court if not properly documented.
• Depending on the nature of the claim (e.g., inheritance claims often have statutory time frames), so early legal advice matters.
• These cases often affect relationships permanently, so legal action should be considered carefully, ideally alongside counsel who can advise on both legal and practical implications.
• A lawyer can guide you on the right court and procedure, since paternity matters may be handled differently depending on whether they arise from marriage, child support claims, or estate disputes.

In conclusion, DNA evidence has brought much needed clarity to paternity disputes in Nigeria, replacing guesswork with scientific certainty. However, the legal process around paternity is not just about the test result, it involves presumptions, court procedure, and sometimes a balancing of biological truth against a child’s overall welfare.

Whether you are a father seeking clarity, a mother seeking recognition and support for your child, or a family member involved in an inheritance dispute, the safest first step is always proper legal consultation before any test is taken or any claim is filed.

For further enquiry

Email: info@verazadvocates.com.ng

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