Witness Statement on Oath (Nigeria)

A Witness Statement on Oath in Nigeria sets out the facts the maker formally declares for the purpose it serves.

The constitutional and statutory basis for witness statements in Nigeria is found in the Evidence Act 2011, which governs the admissibility of all evidence in federal courts and, by adoption, in most state courts. Section 83 of the Evidence Act 2011 governs statements made by persons who cannot be called as witnesses, while the general framework for admissibility of written statements is supplemented by the applicable High Court Civil Procedure Rules of each state. In Lagos State, Order 32 of the Lagos State High Court (Civil Procedure) Rules 2019 mandates that all witnesses must adopt their pre-filed witness statements on oath as their evidence-in-chief before being tendered for cross-examination. Similar provisions appear in Order 30 of the Federal High Court (Civil Procedure) Rules 2019.

A Witness Statement on Oath must be sworn before a Commissioner for Oaths or Notary Public in Nigeria under the Oaths Act (Cap O1, Laws of the Federation of Nigeria 2004) and the Oaths Law of the relevant state. The deponent must physically appear before the Commissioner for Oaths, confirm the content of the statement, and take an oath or affirmation appropriate to their religious or secular belief. A Witness Statement on Oath that is not properly sworn — or that is sworn before a person not authorised to administer oaths — is inadmissible in evidence.

The Witness Statement on Oath is distinct from an Affidavit in Nigeria, though both are sworn documents. An Affidavit is used primarily to support interlocutory applications and motions (such as applications for injunctions, bail, or summary judgment), while a Witness Statement on Oath is used as substantive evidence-in-chief at trial. An Affidavit is generally addressed to the court directly, whereas a Witness Statement on Oath is filed and exchanged between parties before trial in accordance with the pre-trial timetable ordered by the trial judge.

Exchange of witness statements in Nigerian civil proceedings is governed by the relevant Civil Procedure Rules. Under the Lagos State High Court (Civil Procedure) Rules 2019, parties must exchange witness statements simultaneously at the pre-trial conference stage or as directed by the court. Late filing of a witness statement or failure to file may result in the court refusing to permit the witness to testify, depriving the defaulting party of crucial evidence at trial.

The legal framework governing the Witness Statement on Oath (Nigeria) in Nigeria draws on several key statutes and regulatory bodies. Under Nigerian law, the Companies and Allied Matters Act 2020 (CAMA) regulates corporate entities through the Corporate Affairs Commission (CAC). The Labour Act (Cap L1 LFN 2004) and the National Industrial Court of Nigeria (NICN) govern employment disputes. The Nigeria Data Protection Regulation (NDPR) 2019 and the Nigeria Data Protection Commission (NDPC) protect personal data. The Federal Inland Revenue Service (FIRS) administers tax obligations under the Companies Income Tax Act. The Federal High Court and state High Courts have jurisdiction over civil matters. Parties executing a Witness Statement on Oath (Nigeria) in Nigeria should confirm the document reflects current law, including any amendments enacted since the original drafting date. The Contract Law (received English common law) sets the foundational requirements.

A Witness Statement on Oath in Nigeria is required whenever a party to civil proceedings intends to call a witness — including themselves — to give evidence-in-chief at trial before the Federal High Court, a State High Court, the National Industrial Court, or any other court whose rules mandate pre-filing of witness statements.

A Witness Statement on Oath is needed by the plaintiff's witnesses in a civil suit — for example, in a breach of contract claim under the general common law principles applied by Nigerian courts, or in a negligence action — to formally set out the facts the witness intends to prove at trial. The statement must be filed and served on the opposing party before the hearing date in accordance with the pre-trial timetable.

A Witness Statement on Oath is required in employment disputes before the National Industrial Court of Nigeria (NICN), which was established under the National Industrial Court Act 2006 and has exclusive jurisdiction over labour and employment matters. Both employers and employees must file witness statements on oath when contesting unfair dismissal, wrongful termination, or wage disputes.

A Witness Statement on Oath is needed in property disputes adjudicated by State High Courts, including actions for trespass to land, breach of tenancy agreement, recovery of premises, and disputes over a Certificate of Occupancy under the Land Use Act 1978. Witnesses who observed the relevant events, inspected the property, or have professional expertise (such as Licensed Surveyors registered with SURCON) must file witness statements.

A Witness Statement on Oath is required in intellectual property cases before the Federal High Court of Nigeria, which has exclusive jurisdiction over trade mark, patent, copyright, and industrial design matters under the Trade Marks Act (Cap T13, LFN 2004), Patents and Designs Act (Cap P2, LFN 2004), and Copyright Act 2022.

A Witness Statement on Oath is needed when expert witnesses — such as medical doctors, accountants, engineers, or forensic specialists — are called to testify in civil proceedings. Expert witness statements must comply with the requirements of Section 68 of the Evidence Act 2011, which governs the admissibility of expert opinion evidence in Nigerian courts.

A Witness Statement on Oath is required in commercial arbitration proceedings under the Arbitration and Mediation Act 2023, which replaced the Arbitration and Conciliation Act (Cap A18, LFN 2004), where the arbitral tribunal directs the parties to exchange written witness statements before the substantive hearing.

A valid Nigeria Witness Statement on Oath for use in court proceedings must contain the following essential elements.

Court heading: The full title of the court, the suit number, and the names of all parties (plaintiff/claimant and defendant/respondent) exactly as they appear on the originating process. Any deviation from the court heading may cause the statement to be rejected or require a formal amendment under Order 13 of the Lagos State High Court (Civil Procedure) Rules 2019.

Deponent's identity: The full legal name, residential or business address, occupation, and nationality of the witness. The deponent must state their relationship to the parties and the basis of their personal knowledge of the facts deposed to — for example, as a direct eyewitness, a party to the transaction, or an expert with professional qualifications.

Statements of fact: All material facts the witness intends to prove at trial, stated in numbered paragraphs in chronological or logical order. Each paragraph should contain one distinct fact or averment. Under Order 32 of the Lagos State High Court (Civil Procedure) Rules 2019, the witness must adopt the statement as their evidence-in-chief, so the statement must be thorough and cover all facts the witness intends to give from the witness box.

Exhibits: References to all documentary exhibits the witness intends to rely upon, identified by exhibit numbers or letters (e.g., "Exhibit A", "Exhibit B"). Each exhibit must be attached to the witness statement and endorsed as such by the Commissioner for Oaths who administers the oath, under the Evidence Act 2011.

Expert opinion (if applicable): Where the witness is an expert under Section 68 of the Evidence Act 2011, a statement of their professional qualifications, the basis of their expert opinion, and the methodology employed in reaching their conclusions. Expert witness statements in Nigerian courts must comply with the court's requirements for expert evidence disclosure.

Oath or affirmation clause: The formal jurat — the declaration at the foot of the statement confirming that the deponent was sworn or affirmed before the Commissioner for Oaths on a specified date at a specified place. The jurat must include the Commissioner for Oaths' name, seal, and signature. An unsigned or unsealed jurat renders the statement inadmissible.

Deponent's signature: The deponent must sign or thumb-print each page of the witness statement and the jurat in the presence of the Commissioner for Oaths. For illiterate deponents, the Commissioner for Oaths must certify that the statement was read and interpreted to the deponent in a language they understood before the oath was administered, under Section 115 of the Evidence Act 2011.

Additional compliance elements for a Witness Statement on Oath (Nigeria) used in Nigeria include: Under Nigerian law, the Companies and Allied Matters Act 2020 (CAMA) regulates corporate entities through the Corporate Affairs Commission (CAC). The Labour Act (Cap L1 LFN 2004) and the National Industrial Court of Nigeria (NICN) govern employment disputes. The Nigeria Data Protection Regulation (NDPR) 2019 and the Nigeria Data Protection Commission (NDPC) protect personal data. The Federal Inland Revenue Service (FIRS) administers tax obligations under the Companies Income Tax Act. The Federal High Court and state High Courts have jurisdiction over civil matters. Forms-legal.com provides this template as a starting point for Nigeria-compliant documentation.