Interlocutory Injunctions: Anatomy of a Winning Application

The governing framework

An interlocutory injunction is among the most powerful weapons in civil litigation — and among the most frequently mishandled. It freezes the status quo, compels or prohibits action, and can effectively determine the outcome of a dispute before trial. Applied correctly, it protects your client. Applied carelessly, it destroys the case.

Yet Nigerian courts refuse a striking proportion of injunction applications not on the merits of the substantive dispute, but on failures of application — wrong principles stated, inadequate affidavit evidence, undertakings not properly offered, or urgency manufactured rather than genuine. This issue maps the anatomy of a successful application.

The jurisdiction to grant interlocutory injunctions derives from Section 13 of the Federal High Court Act, Order 26 of the Federal High Court (Civil Procedure) Rules 2019, and — for State High Courts — the respective Civil Procedure Rules. The substantive test is rooted in the House of Lords decision in American Cyanamid Co v Ethicon Ltd [1975] AC 396, adopted and applied by the Nigerian courts in a long line of authority including Kotoye v CBN [1989] 1 NWLR (Pt 98) 419 SC and INEC v Musa [2003] 3 NWLR (Pt 806) 72 CA.

The three-stage test requires the court to consider: (1) whether there is a serious question to be tried; (2) whether the balance of convenience favours the grant; and (3) whether damages would be an adequate remedy. These are cumulative and sequential — failure at any stage is fatal.

Element 01 — Serious question to be tried

The first limb of the American Cyanamid test is commonly misunderstood and routinely overstated. The question is not whether your client will win. It is the far lower threshold of whether the claim is not frivolous or vexatious — whether there is a real, as opposed to spurious, legal question to be decided.

Nigerian courts have shown willingness to engage with the substantive merits more deeply than the English courts do under the pure Cyanamid formulation. The Supreme Court in Kotoye v CBN made clear that the “serious question” threshold, while low, requires more than a bare assertion — the applicant must point to a subsisting cause of action supported by facts in the affidavit evidence. The practical implication: do not state the legal basis of the claim in the motion paper alone. Your supporting affidavit must exhibit the contract, correspondence, or statutory provision that gives rise to the right you are seeking to protect. A court that cannot identify the cause of action from the face of the affidavit will refuse the application on this first limb without proceeding further.

Common mistakes at this stage: pleading by affidavit (counsel frequently use the supporting affidavit to make legal arguments rather than deposing to facts — an affidavit is not a written address; legal conclusions belong in the written address, facts belong in the affidavit); failure to exhibit foundational documents (the contract, board resolution, statutory provision, or instrument relied upon must be exhibited — referring to it by name is not sufficient); and overstating the threshold (some counsel argue the applicant “will succeed at trial,” which is the wrong test and can backfire by inviting the court into a full merits examination it would otherwise have declined).

Element 02 — Adequacy of damages: why money is not always enough

The second consideration — often addressed inadequately — is whether damages would be an adequate remedy if the applicant is ultimately successful at trial. If damages are adequate, the injunction will almost always be refused. The applicant must demonstrate, with specificity, why monetary compensation cannot repair the harm.

Nigerian courts recognise several categories of irreparable harm: real property (land is unique; no two parcels are identical; specific restitution may be impossible — Obeya Memorial Hospital v AG Federation); ongoing business destruction (loss of goodwill, trade connections, and market position cannot be precisely quantified — Sotuminu v Ocean Steamship (Nig) Ltd); threatened dissipation of assets (where the respondent’s solvency is at risk, a damages award will be worthless — Mareva jurisdiction under the FHC Rules); constitutional or statutory rights (violation of fundamental rights is per se irreparable — INEC v Musa); and insolvency of the respondent (a judgment creditor cannot recover from an insolvent respondent).

The inadequacy of damages is the element most likely to be under-evidenced. Many applications simply assert that the harm is “irreparable” without grounding that assertion in fact. Courts have repeatedly held that the assertion alone is insufficient. The affidavit must identify the specific harm that will occur if the injunction is not granted; explain why that harm cannot be compensated in money — and exhibit evidence supporting this (valuation reports, financial projections, market analyses); address the respondent’s capacity to satisfy a damages award (if the respondent is a special purpose vehicle, offshore entity, or company of doubtful financial standing, say so and exhibit the evidence); and quantify the unquantifiable (where reputational damage, customer attrition, or market position loss is relied upon, commission and exhibit an expert assessment, even a preliminary one — courts respond to evidence, not submissions).

Element 03 — Balance of convenience and the status quo

Where damages are not clearly adequate or inadequate for either party, the court proceeds to the balance of convenience: where does the greater risk of injustice lie if the court gets the decision wrong? This is the most discretionary element of the analysis, and the most susceptible to advocacy.

Nigerian appellate courts have consistently held that the balance of convenience is not a simple numerical comparison of losses. The court weighs the nature of the right at stake, the conduct of the parties, and the practical effect of granting or refusing the order. Factors favouring the applicant include: actual possession of the asset or right being threatened; a respondent’s threatened act that is irreversible (demolition, publication, dissipation); a respondent that is a special purpose vehicle with no independent assets; third parties (employees, communities, creditors) who will be irreparably affected; and threats in correspondence suggesting imminent action. Factors favouring the respondent include: lawful activity the injunction would immediately disrupt; the applicant’s delay in bringing the application (equity will not assist the tardy); unclean hands (a complete equitable defence); and substantive merits that strongly favour the respondent on the face of the evidence.

The status quo principle: where all else is equal, Nigerian courts will act to preserve the status quo as at the date of the application — not as at the date the dispute arose. This distinction is important: an applicant who delays bringing an application while the situation deteriorates may find that the current status quo actually favours the respondent, and the court’s instinct to maintain it will work against the grant. Tactical note: move quickly. An injunction application brought the day after the threatening event is a different application from one brought three weeks later. Every day of inaction reduces the urgency, undermines the claim of irreparable harm, and allows the respondent to embed the very state of affairs you are trying to prevent.

Element 04 — The undertaking as to damages: a non-negotiable condition

Before any interlocutory injunction will be granted, the applicant must offer — and the court must accept — an undertaking as to damages: a solemn promise that if the injunction turns out to have been wrongly granted, the applicant will compensate the respondent for all losses sustained by reason of the order.

This is not a formality. Nigerian courts and the English Court of Appeal have held that the undertaking is the price of the injunction — and it must be real, not theoretical. Where the applicant is of doubtful financial standing, the court may require the undertaking to be fortified by a payment into court, a bank guarantee, or security over identified assets.

In-house counsel must consider who gives the undertaking (the applicant, not counsel — where the applicant is a company, the undertaking should be given by a duly authorised officer and this authority should be exhibited in the affidavit); fortification (if the respondent applies for fortification, the court will assess the applicant’s financial capacity — be prepared to produce audited accounts, bank statements, or asset schedules); and strategic exposure (if the injunction is later discharged, the undertaking converts into a liability — never advise a client to seek an injunction without assessing whether the undertaking can realistically be honoured).

The cross-undertaking trap: in-house counsel managing litigation must flag this clearly to the board — if an interlocutory injunction is obtained and subsequently discharged, the company will be required to compensate the respondent for all losses caused by the order. In a commercial context — where the injunction may have halted a construction project, blocked a business transaction, or frozen an account — those losses can be substantial. The undertaking is a contingent liability that must be disclosed and provisioned for.

Special category — Ex parte applications: when speed overrides notice

In cases of genuine urgency, the court may grant an injunction ex parte — without notice to the respondent. This is an exceptional jurisdiction, exercised with great caution by Nigerian courts. It demands the highest standard of candour from the applicant.

The applicant in an ex parte application owes the court an absolute duty to disclose every material fact — including facts that are adverse to the applicant’s case. The court is asked to act without hearing the other side; it must be given the full picture. Nigerian and English courts have been unsparing in dealing with failures of disclosure. An injunction obtained ex parte without full disclosure will almost invariably be discharged — with adverse costs consequences — once the respondent appears. In egregious cases, the court will refuse to reinstate the order even where the applicant might otherwise have been entitled to it.

What must be disclosed: any prior application for the same or similar relief that was refused (and why); any delay in bringing the application and the reasons for it; any defence or counterclaim the respondent is known or likely to assert; any conduct by the applicant that might constitute a breach of the principle of clean hands; any alternative remedy that was available and not pursued; and any material change in circumstances since the cause of action arose.

An ex parte injunction is invariably expressed to last only until a specified return date, when both parties appear and the court decides whether to continue, vary, or discharge the order. In-house counsel must ensure the respondent is served immediately and properly (failure to serve is itself a ground for discharge); the affidavit evidence is supplemented between grant and return date to address any gaps identified in the ex parte hearing; and a strategy is in place to resist any application to discharge, and to seek continuation on appropriate terms.

Advanced application — The Mareva injunction: freezing assets before judgment

A Mareva injunction — now commonly called a freezing order — is a specialised form of interlocutory injunction that prevents a respondent from dealing with, disposing of, or dissipating assets pending the determination of a claim. It is available in the Federal High Court and, increasingly, in State High Courts with commercial jurisdiction.

The threshold for a Mareva injunction is higher than for an ordinary interlocutory injunction. It requires a good arguable case (stronger than “serious question” — the applicant must show a case that is “more than barely arguable,” supported by a documented cause of action with exhibits and a legal opinion on prospects of success); a real risk of dissipation (objective evidence, not mere suspicion, that the respondent will move or hide assets — corporate structure searches, previous conduct evidence, asset movement history, offshore connections); assets within jurisdiction (the order must be capable of biting on identifiable assets — land registry searches, vehicle searches, bank account identification, share register extracts); and balance of convenience (the harm from granting must not outweigh the harm from refusing, supported by expert analysis of the respondent’s business impact and third-party interests assessment).

Cross-border Mareva: Nigerian courts have granted Mareva injunctions extending to assets held abroad, particularly where the respondent has offshore banking relationships or holds assets through foreign subsidiaries. However, the enforceability of such orders depends entirely on the cooperation of foreign courts and financial institutions. In-house counsel pursuing a cross-border Mareva strategy must engage foreign counsel at the earliest stage.

Application checklist and editor’s note

Run through this before any injunction application is filed. Cause of action and evidence: the supporting affidavit deposes to facts — not legal arguments or conclusions; all foundational documents are exhibited; the cause of action is clearly identifiable from the affidavit alone; the deponent has personal knowledge or clearly identifies the basis of information and belief. Serious question to be tried: the claim discloses a recognisable cause of action that is not frivolous or vexatious; the threshold has not been overstated; any statutory or procedural pre-conditions have been satisfied. Adequacy of damages: specific and evidenced reasons why damages cannot repair the harm are set out; expert or valuation evidence is exhibited where loss of goodwill or market position is relied upon; the respondent’s financial capacity has been addressed; any insolvency, offshore structure, or asset-stripping risk has been specifically identified and evidenced. Balance of convenience: the application has been brought promptly and any delay is explained; the applicant’s hands are clean; third-party interests are addressed; the relief sought does not amount to granting the applicant the full relief sought at trial. Undertaking and procedural matters: the undertaking as to damages is offered and supported by evidence of financial capacity; authority to give the undertaking on behalf of a company is exhibited; for ex parte applications, all adverse facts and prior applications have been disclosed; the proposed order is attached in precise, enforceable terms; the return date has been factored in and the respondent’s service strategy is in place.

The injunction is not the victory — it is the platform. In-house counsel who have been through injunction proceedings often report the same experience: the application consumed more resources, produced more anxiety, and mattered more to the client than virtually any subsequent stage of the litigation. That is because an interlocutory injunction is not merely a procedural step. It shapes the entire trajectory of the dispute — who has leverage, who bears costs, who is under commercial pressure to settle. The applications that succeed share common features: they are prepared meticulously, brought promptly, evidenced specifically, and presented with a coherence between the affidavit, the written address, and the order sought that tells a single, compelling story. The applications that fail are almost always undone by avoidable errors — delay, thin affidavit evidence, an inadequate undertaking, or a failure of candour on the ex parte hearing.