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Can a Lawyer Represent Both Sides in a Court Case? Understanding Conflict of Interest in Nigerian Law


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Conflict of interest in court cases

Law Simplified Video


Begin with our short Law Simplified video for a concise explanation of this legal topic. Then continue reading for a more detailed discussion below.

Introduction

In every legal matter, one of the most important things you need is confidence—confidence that your lawyer is loyal to your cause, and that the process will be fair. This is why Nigeria’s Rules of Professional Conduct for Legal Practitioners, 2007 (RPC) were established—to protect the integrity of the legal process and prevent ethical issues that could hurt a client or the justice system.

One area where these rules are especially important is in conflict of interest—a situation where a lawyer’s personal interest or past involvement could unfairly affect their ability to act in a case.

Let’s break this down.

What Is a Conflict of Interest?

A conflict of interest arises when a lawyer cannot be impartial because:

  • They have a personal stake in the matter.
  • They previously represented one of the parties.
  • They have access to confidential information that could be used against a former client.
  • They are likely to become a witness in the case.

In such situations, continuing to act as a lawyer could damage trust in the justice system, and more importantly, harm the other party.

The Key Rules That Apply

The RPC contains specific rules that guide how lawyers should behave in these situations:

1. Rule 17 – Conflict of Interest

Rule 17(2): A lawyer must not take up a case if their judgment could be affected by personal, financial, or prior involvement in the matter.

Rule 17(4): A lawyer cannot accept a new case if it will involve representing different sides in the same or related dispute.

Rule 17(6): If a lawyer is disqualified from handling a case, no other lawyer in their law firm can continue with it either. This prevents law firms from avoiding ethical obligations by just changing the lawyer assigned.

2. Rule 20 – Lawyer as a Witness

Rule 20(1): A lawyer must not handle a case if they know—or ought to know—that they or someone in their firm may be called as a witness in the same case.

Rule 20(6): If a lawyer discovers during the case that they must give evidence, they must withdraw immediately and not argue or promote their own testimony.

Why These Rules Exist

These ethical rules protect:

  • Clients’ trust that their former lawyers won’t use their private information against them.
  • The fairness of the legal system, by ensuring lawyers don’t serve as both advocate and witness.
  • The reputation of the legal profession, which must be built on honesty and impartiality.

If these rules are ignored, it can lead to unfair outcomes, tainted proceedings, and even mistrials.

Real-Life Examples

These issues often come up when:

  • A lawyer who helped draft or review a transaction (e.g., a power of attorney or sale agreement) later appears in court to defend or challenge that same transaction.
  • A lawyer who filed a case for a client switches sides and begins to represent the opposing party in a later or related case.

Such actions can severely damage the fairness of a trial—and courts in Nigeria have shown they will act to prevent this by disqualifying the lawyer or striking out their applications.

What Can You Do if This Happens to You?

If you find yourself in a case where the opposing lawyer:

  • Previously represented you,
  • Is now using confidential information from you,
  • Played a role in the disputed transaction, or Is likely to be a witness in the case,

You don’t have to keep quiet. You have options:

1. Apply to Disqualify the Lawyer

You can file a motion in court asking for the lawyer to be disqualified from continuing in the case, especially where there is evidence of conflict.

2. Report to the Legal Practitioners Disciplinary Committee

If the lawyer’s conduct amounts to a serious ethical breach, you can report them to the Body of Benchers through the Nigerian Bar Association.

3. Request the Lawyer’s Voluntary Withdrawal

In some cases, a simple written request to the lawyer or their firm, pointing out the conflict, may lead them to step aside voluntarily to avoid further issues.

4. Seek Fresh Legal Representation

If your current lawyer has a conflict, or if you feel the situation is too complicated, getting a second opinion from another lawyer can help you protect your interest.

Final Words: Ethics Matter

Legal practice is not just about winning cases. It’s about fairness, trust, and integrity. The Rules of Professional Conduct are there to ensure that lawyers act in the best interest of justice—and that no party is unfairly disadvantaged because a lawyer switched sides or failed to step aside when they should have.

Whether you are a litigant, a client, or a lawyer, understanding these rules is crucial. If you suspect a breach of legal ethics, take it seriously—because your case, your rights, and the justice system depend on it.

Disclaimer:

This article is for general educational purposes only and does not constitute legal advice. Every legal case is different. If you suspect a conflict of interest or need help with a similar issue, please consult a qualified legal practitioner for guidance specific to your situation.

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