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Interlocutory Injunctions, Explained

The test courts actually apply — Campus Oil’s questions, Merck v Clonmel’s recalibration — in plain English.

Every application on this site is decided by one framework, so it deserves one honest page. The problem the law solves: a court asked to intervene now, on affidavits, before full evidence, must act without pre-judging the trial — and the Irish answer runs from Campus Oil’s questions to the Supreme Court’s recalibration in Merck v Clonmel: the search for the course carrying the least risk of injustice.

The Questions, and the Modern Grammar

The Campus Oil vocabulary: is there a fair, bona fide question to be tried (a serious issue — not a mini-trial); would damages be an adequate remedy (if money later truly repairs the harm, emergency intervention isn’t needed); and where does the balance of convenience lie — each side’s harm from granting versus refusing, the status quo preserved rather than changed before rights are determined. Merck v Clonmel supplies the modern grammar: the exercise is flexible and holistic — adequacy of damages weighed within the overall balance of justice rather than as a mechanical knockout, the case’s strength and commercial realities admitted honestly, and the ultimate question stated plainly: which course risks less injustice if the trial proves it wrong? One threshold variation matters enormously in practice: orders mandatory in substance — compelling performance rather than restraining it, the reinstated executive being the classic — require a strong case likely to succeed, the Maha Lingam standard; and substance, not the order’s framing, decides which bar applies. That single distinction shapes the whole strategy of the employment injunction field.

What the Test Means for Strategy — Both Chairs

For applicants, the test is a construction manual: build the damages-inadequacy case with specifics (why money later fails on these facts — the unique land, the escaped confidence, the business that won’t survive to judgment); build the balance with evidence of comparative harm; move early, so the status quo you preserve is the one you want — and stand behind the undertaking the whole structure rests on. For respondents, the mirror image: damages would do fine, and here are the undertakings and records that make them calculable; the balance cuts our way, and here is the harm restraint does us; the “strong case” isn’t — and the applicant’s delay tells its own story about urgency. And a strategic warning the status-quo principle issues to respondents everywhere on this site: racing to complete once challenged injures your own case — the race becomes the evidence. The framework is the vocabulary of every page here; the hub shows it moving at speed.

How Does the Test Read on Your Facts?

That's an hour's honest analysis, not a website's promise: the fair-question strength, the damages argument, the balance - in writing, before anything is committed.

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Related Reading

The Interlocutory Test - FAQs

The classic Irish framework for interlocutory injunctions, from the Campus Oil case: the court asks first whether there is a FAIR, BONA FIDE QUESTION to be tried (a serious issue, not a mini-trial of the merits); then whether DAMAGES WOULD BE AN ADEQUATE REMEDY - if money later would truly repair the harm, the injunction is generally refused, since the trial can sort it out; and where damages are inadequate, WHERE THE BALANCE OF CONVENIENCE LIES - weighing the harm each side suffers from granting versus refusing, the preservation of the status quo, and the practicalities. The framework’s genius is its restraint: courts deciding urgently, on affidavits, before full evidence, need a test that avoids pre-judging the trial - and this is it.