Injunctions impose immediate restraint before liability is determined. That power is balanced by security and undertakings, which allocate risk while control is imposed. In high-stakes disputes, Injunctions and Emergency Relief are granted on the condition that the applicant stands behind the consequences if relief is later found unjustified. Security and undertakings are not procedural formalities. They are enforcement architecture that allows courts to act decisively without prejudging the merits.
Function of Security and Undertakings
The function is risk allocation. Courts intervene early to preserve assets, restrain conduct, or protect jurisdiction. Security and undertakings ensure that this intervention does not transfer unjustified loss to the restrained party if the injunction is later discharged.
Balancing Authority and Fairness
Injunctions are intrusive by design. Undertakings allow courts to exercise authority while maintaining procedural fairness. They are the price of early control.
Preserving Judicial Confidence
Courts grant urgent relief where applicants demonstrate both evidentiary strength and financial credibility. Security underwrites that credibility.
Undertaking as to Damages
The undertaking as to damages is the central safeguard in injunction practice.
Nature of the Undertaking
The applicant promises to compensate the respondent for losses suffered if the injunction is later found to have been wrongly granted. The undertaking is enforceable and survives discharge of the injunction.
Scope of Compensable Loss
Losses may include operational disruption, lost profits, financing costs, contractual penalties, and reputational damage where causation is established. The assessment is fact-specific and evidence driven.
Timing of Enforcement
Enforcement of the undertaking occurs after final determination or discharge of the injunction. The court retains supervisory jurisdiction to assess quantum.
When Courts Require Additional Security
An undertaking alone is not always sufficient.
Financial Capacity Concerns
Where there is doubt as to the applicant’s ability to honour the undertaking, courts require additional security. Balance sheet strength, liquidity, and asset location are scrutinised.
Cross-Border Risk
If the applicant’s assets are offshore or difficult to enforce against, courts mitigate enforcement risk through security orders.
Magnitude of Potential Loss
Where the injunction may cause substantial loss, courts increase security requirements to match exposure.
Forms of Security
Security is structured to ensure enforceability.
Cash Deposits
Courts may require cash to be paid into court or held in escrow. This provides immediate assurance of recoverability.
Bank Guarantees
Unconditional bank guarantees from reputable institutions are commonly accepted. They combine enforceability with capital efficiency.
Third-Party Security
In limited cases, security may be provided by a financially robust third party. Courts assess independence and creditworthiness carefully.
Security in Ex Parte Applications
Without-notice relief elevates the importance of security.
Heightened Judicial Scrutiny
Ex parte injunctions are granted without hearing the respondent. Courts counterbalance this by demanding robust undertakings and, where appropriate, immediate security.
Consequences of Non-Compliance
Failure to provide ordered security results in discharge of relief. Compliance is a condition precedent to continuation of the injunction.
Variation and Review of Security
Security is not static.
Adjustment Over Time
As evidence develops and risk profiles change, courts may increase or reduce security. Applicants must be prepared for recalibration.
Respondent Applications
Respondents may apply for increased security where losses escalate or where initial security proves inadequate.
Interaction With the Balance of Convenience
Security influences judicial discretion.
Facilitating Grant of Relief
Robust security can tip the balance of convenience in favour of granting relief by neutralising prejudice to the respondent.
Constraining Overreach
Where applicants resist meaningful security, courts infer overreach or weak confidence in the merits. Relief narrows or fails.
Security in Asset Freezing and Preservation Orders
Freezing relief amplifies potential loss.
Business Continuity Risk
Asset restraint can disrupt operations and financing. Courts calibrate security to reflect that exposure.
Disclosure and Security Alignment
Where disclosure reveals limited liquidity or high dependency on restrained assets, security requirements increase.
Security in Arbitration-Related Injunctions
Arbitration does not dilute security requirements.
Court-Supported Interim Relief
Courts granting interim relief in support of arbitration impose undertakings and security to protect respondents pending award.
Emergency Arbitrator Parallels
Emergency arbitral relief often mirrors court practice by requiring undertakings. Courts reinforce these with enforceable security where coercive authority is required.
Strategic Considerations for Applicants
Security must be planned, not negotiated reactively.
Pre-Filing Assessment
Applicants should assess potential loss scenarios and prepare security solutions before filing. Delay undermines urgency and credibility.
Capital Structuring
Security should be structured to preserve liquidity while satisfying enforceability. Poor structuring weakens leverage.
Strategic Considerations for Respondents
Security is a defensive tool.
Challenging Adequacy
Respondents should scrutinise the applicant’s financial capacity and press for security that reflects real exposure.
Using Security to Narrow Relief
Where applicants cannot meet security requirements, courts narrow scope or discharge relief. This rebalances control.
Judicial Discretion and Proportionality
Courts engineer security with discipline.
Proportionate Protection
Security must match risk without becoming punitive. Excessive demands undermine access to justice.
Outcome Orientation
The objective remains preservation pending determination. Security supports that objective by ensuring that interim control does not produce irreversible injustice.
Conclusion
Security and undertakings are the counterweight that makes injunctions possible. They allocate risk, preserve fairness, and give courts confidence to impose early control without deciding liability. When structured properly, they stabilise disputes and protect both sides while outcomes are determined. In injunction practice that matters, authority is exercised decisively because it is underwritten. Control without security is restraint without legitimacy.



