Anti-Enforcement Injunctions in Europe

1. Introduction

An anti-enforcement injunction is a court order intended to prevent a party from enforcing or obtaining recognition of a judgment, arbitral award, or other adjudicative decision in another jurisdiction.

It is closely related to an anti-suit injunction and an anti-arbitration injunction, but it operates at a different stage:

Anti-suit injunction → stops foreign court proceedings.

Anti-arbitration injunction → stops arbitration.

Anti-enforcement injunction → seeks to stop enforcement of an existing judgment or award.

The central question is:

When, if ever, should a court restrain a party from invoking another jurisdiction's judgment or arbitral award?

European courts approach such orders cautiously because they can interfere with:

jurisdiction of foreign courts;

recognition and enforcement regimes;

international comity;

the New York Convention;

EU mutual trust;

finality of judgments;

party autonomy in arbitration.

2. Meaning of an Anti-Enforcement Injunction

An anti-enforcement injunction generally orders a party:

not to enforce, register, recognize, execute, or otherwise rely upon a foreign judgment or arbitral award.

The injunction is normally directed at the party seeking enforcement, rather than directly at the foreign court.

For example:

A French court has issued a judgment.
The successful party attempts to enforce it in England.
The losing party asks an English court to restrain enforcement.

The English court may have to determine whether it has sufficient grounds to interfere with the enforcement process.

3. Anti-Enforcement Versus Other Injunctions

The distinction is important because anti-enforcement proceedings generally arise after an adjudicative decision already exists.

4. Why Anti-Enforcement Injunctions Are Exceptional

Once a foreign court has rendered a judgment, or an arbitral tribunal has issued an award, several legal principles favour finality:

res judicata;

finality of judgments;

recognition of foreign judgments;

international comity;

territorial jurisdiction;

arbitration autonomy;

New York Convention obligations;

EU mutual trust.

An anti-enforcement injunction therefore asks one national court to interfere with the consequences of another adjudicative system.

That creates a significant jurisdictional problem.

5. Principal Legal Sources

Anti-enforcement litigation may involve:

A. National procedural law

This determines whether the domestic court has power to issue the injunction.

B. Brussels I Recast Regulation

For many EU civil and commercial judgments, Regulation 1215/2012 governs:

jurisdiction;

recognition;

enforcement;

mutual trust between Member States.

C. New York Convention

For arbitral awards, the New York Convention is fundamental.

D. ECHR

Article 6 and Article 1 of Protocol No. 1 can become relevant to:

access to court;

final judgments;

property rights;

enforcement.

E. EU constitutional principles

Particularly:

mutual trust;

mutual recognition;

effective judicial protection;

autonomy of EU law.

6. Basic Requirements

Although national standards differ, an applicant generally needs to establish:

a foreign judgment or award exists;

the opposing party is attempting or threatening enforcement;

the domestic court has jurisdiction over the respondent or relevant assets;

there is a strong legal basis for restraining enforcement;

ordinary recognition/enforcement remedies are inadequate or insufficient;

intervention is justified by exceptional circumstances;

the balance of interests supports the injunction.

7. Why an Injunction May Be Sought

Possible grounds include:

1. Fraud

The judgment or award was obtained through serious fraud.

2. Lack of jurisdiction

The foreign tribunal lacked jurisdiction over the defendant.

3. Procedural injustice

The defendant was denied:

notice;

representation;

an opportunity to be heard;

an impartial tribunal.

4. Violation of an exclusive jurisdiction agreement

A judgment may have been obtained in breach of a contractual jurisdiction clause.

5. Abuse of process

The enforcement attempt may be oppressive or abusive.

6. Public policy

Recognition may be contrary to fundamental domestic or international public policy.

7. Arbitration irregularity

The award may have been rendered without a valid arbitration agreement or outside the tribunal's mandate.

8. Conflict with mandatory EU law

Particularly important where enforcement would undermine EU legal principles.

8. Key Case: Turner v Grovit

1. Turner v Grovit, Case C-159/02

CJEU, 27 April 2004

The CJEU held that an anti-suit injunction preventing proceedings in another EU Member State could not be granted where the foreign court had jurisdiction under the Brussels jurisdictional system.

Although Turner is technically an anti-suit injunction case rather than an anti-enforcement case, it established the broader principle of mutual trust among EU Member State courts.

Importance

A Member State court should not ordinarily undermine the jurisdiction of another Member State court through an injunction.

This principle becomes relevant when an anti-enforcement application effectively seeks to neutralize the judgment of another EU court.

9. West Tankers

2. Allianz SpA v West Tankers Inc., C-185/07

CJEU, 10 February 2009

The CJEU held that an anti-suit injunction restraining proceedings before a court of another Member State was incompatible with the Brussels jurisdiction framework.

Relevance to anti-enforcement proceedings

West Tankers reinforces:

mutual trust;

judicial autonomy;

allocation of jurisdiction;

prohibition on one EU court controlling another EU court's proceedings.

It is therefore highly relevant when an anti-enforcement application would indirectly undermine a judgment or proceeding within another Member State.

10. Gazprom

3. Gazprom OAO v Lietuvos Respublika, C-536/13

CJEU, 13 May 2015

Gazprom concerned the relationship between arbitration and EU jurisdiction rules.

The CJEU distinguished arbitration from proceedings before Member State courts.

Importance

The case demonstrates that:

An arbitration award does not necessarily receive exactly the same treatment as a judgment of another EU Member State court.

This distinction becomes particularly important in anti-enforcement proceedings concerning arbitral awards.

11. The English Supreme Court: Ust-Kamenogorsk

4. Ust-Kamenogorsk Hydropower Plant JSC v AES Ust-Kamenogorsk Hydropower Plant LLP

UK Supreme Court, [2013] UKSC 35

This is an important authority on anti-arbitration relief and the jurisdiction of courts to protect contractual rights.

The Supreme Court recognized that an English court could grant relief restraining a party from commencing or pursuing arbitration despite the fact that no arbitration had actually commenced.

Relevance

The case illustrates the broader proposition that courts can protect contractual rights concerning arbitration where appropriate.

It is not itself a pure anti-enforcement case, but it is useful when analysing the relationship between:

arbitration agreements;

court jurisdiction;

injunctive relief;

contractual rights.

12. Anti-Enforcement and Arbitration: Dallah

5. Dallah Real Estate and Tourism Holding Co v Ministry of Religious Affairs, Government of Pakistan

UK Supreme Court, [2010] UKSC 46

This is one of the most important European arbitration enforcement authorities.

The dispute concerned whether Pakistan was bound by the arbitration agreement and whether the arbitral award could be enforced against it.

The UK Supreme Court independently examined whether there was a valid arbitration agreement binding the relevant party.

Importance

Dallah establishes that:

A national court asked to enforce a foreign arbitral award can independently examine whether the alleged debtor was actually bound by the arbitration agreement.

Anti-enforcement relevance

If enforcement is sought against a party that never agreed to arbitration, the enforcement court may refuse enforcement.

This may provide a conventional alternative to an anti-enforcement injunction.

13. Yukos Capital v Rosneft

6. Yukos Capital Sarl v OJSC Rosneft Oil Company

The litigation concerning Yukos Capital and Rosneft is particularly significant for the interaction between:

arbitral awards;

annulment at the seat;

enforcement elsewhere;

public policy;

international comity.

English courts examined whether Russian arbitral awards that had been set aside in Russia could nevertheless have legal consequences elsewhere.

Importance

The case illustrates an important principle:

The relationship between annulment at the seat and enforcement in another jurisdiction is not always mechanically simple.

The enforcement court may have to consider:

whether the award was validly annulled;

the circumstances of annulment;

due process;

public policy;

international obligations.

14. Eco Swiss

7. Eco Swiss China Time Ltd v Benetton International NV, C-126/97

CJEU, 1 June 1999

The CJEU held that fundamental EU competition rules can have public-policy significance in arbitration.

Relevance

Where enforcement of an arbitral award would conflict with mandatory EU competition law, a national court may have grounds to refuse enforcement or otherwise intervene under the applicable procedural framework.

This is more commonly a defence to enforcement than a basis for an anti-enforcement injunction.

That distinction matters.

15. Mostaza Claro

8. Mostaza Claro v Centro Móvil Milenium SL, C-168/05

CJEU, 26 October 2006

The CJEU emphasized the mandatory character of EU consumer protection.

An unfair arbitration clause cannot necessarily be enforced merely because the consumer did not challenge it earlier.

Anti-enforcement relevance

If an award is based on an unfair consumer arbitration clause, the enforcement court may be required to protect mandatory consumer rights.

Again, the ordinary remedy may be refusal of enforcement, rather than a separate anti-enforcement injunction.

16. Asturcom

9. Asturcom Telecomunicaciones SL v Cristina Rodríguez Nogueira, C-40/08

CJEU, 6 October 2009

The case concerned enforcement of an arbitral award arising from a consumer contract.

The CJEU addressed the obligation of national courts to respect EU consumer-protection requirements.

Importance

It confirms that:

arbitration does not eliminate mandatory consumer protection;

finality of an award does not necessarily prevent examination of unfair terms where EU law requires it.

17. Achmea

10. Slovak Republic v Achmea BV, C-284/16

CJEU, 6 March 2018

Achmea concerned intra-EU investment arbitration.

The CJEU held that the arbitration mechanism in question was incompatible with EU law because it could undermine the autonomy of the EU legal order.

Anti-enforcement significance

If an intra-EU arbitral award derives from an arbitration mechanism incompatible with EU law, the award may face serious difficulties at the enforcement stage.

Achmea therefore provides a major example of the principle that:

international arbitration cannot override the constitutional structure of EU law.

18. Komstroy

11. Republic of Moldova v Komstroy, C-741/19

CJEU, 2 September 2021

Komstroy continued the Achmea line concerning intra-EU application of the Energy Charter Treaty.

The Court held that the ECT arbitration mechanism could not be relied upon for intra-EU disputes in a manner incompatible with EU law.

Relevance

Enforcement of an award arising from such proceedings may encounter substantial EU-law objections.

19. Mutual Trust in EU Law

One of the strongest barriers to anti-enforcement injunctions is mutual trust.

EU Member States generally recognize each other's judgments on the assumption that:

courts are independent;

proceedings are lawful;

fundamental rights are protected;

judicial decisions should circulate freely.

Consequently, one Member State should not casually declare:

“The judgment of another Member State's court should not be enforced.”

The EU system instead provides structured mechanisms for:

recognition;

refusal of recognition;

refusal of enforcement;

appeal;

public-policy objections.

20. Anti-Enforcement Injunctions and the Brussels I Recast Regulation

For EU Member State judgments falling within Regulation 1215/2012, enforcement is principally governed by the Regulation's recognition and enforcement framework.

The regulation is based upon:

mutual trust;

free circulation of judgments;

limited grounds for refusal;

procedural cooperation.

This means that a litigant generally should use the recognition/enforcement mechanisms provided by the Regulation, rather than attempting to circumvent them through an injunction.

21. Public Policy

Public policy remains an important exception.

A court may potentially refuse recognition or enforcement where enforcement would be:

manifestly contrary to the public policy of the enforcing State.

However, the public-policy exception is narrowly interpreted.

It does not mean:

“The enforcing court disagrees with the foreign judgment.”

Instead, the foreign decision normally must violate a fundamental principle of the enforcing legal order.

22. Procedural Fairness

Anti-enforcement arguments may be stronger where the foreign decision was obtained without fundamental procedural safeguards.

Examples include:

no proper service;

inability to participate;

denial of legal representation;

denial of a fair hearing;

serious judicial bias;

fraud;

lack of independence.

Article 6 ECHR principles can reinforce these arguments.

23. Fraud

Fraud is one of the strongest traditional grounds for extraordinary relief.

Possible allegations include:

fabricated evidence;

deliberate concealment;

fraudulent service;

corruption;

deliberate misrepresentation to the foreign court;

forged contractual documents.

But courts normally require convincing evidence.

A mere allegation that:

“The foreign court got the facts wrong”

is not equivalent to fraud.

24. Jurisdictional Fraud

A particularly serious situation occurs when a party deliberately manufactures jurisdiction.

For example:

false residence information;

sham contractual connections;

fraudulent service;

manipulation of corporate structures.

An anti-enforcement application may become more compelling if the foreign judgment was obtained through such conduct.

25. Anti-Enforcement of Arbitral Awards

Arbitral awards create a different legal framework because of the New York Convention.

The normal enforcement analysis asks:

Article V(1)

Can enforcement be refused because of:

invalid arbitration agreement;

incapacity;

lack of notice;

inability to present case;

excess of jurisdiction;

irregular tribunal composition;

award not yet binding or annulled?

Article V(2)

Can enforcement be refused because:

subject matter is not arbitrable;

enforcement violates public policy?

This is why a party seeking to prevent enforcement should normally examine New York Convention Article V before seeking an anti-enforcement injunction.

26. Anti-Enforcement Versus Refusal of Enforcement

This is one of the most important distinctions.

Refusal of enforcement

The enforcing court says:

“I will not enforce this foreign judgment/award.”

Anti-enforcement injunction

The court says:

“The other party is prohibited from seeking enforcement.”

The first is generally more orthodox.

The second potentially interferes with proceedings in another jurisdiction and may therefore require stronger justification.

27. Anti-Execution Injunction

An anti-enforcement injunction should also be distinguished from an anti-execution injunction.

Suppose:

foreign judgment exists;

judgment creditor begins enforcement;

creditor attempts to seize assets.

A court may sometimes restrain particular execution steps concerning assets within its jurisdiction.

This can be more narrowly framed than an order prohibiting enforcement globally.

28. Territorial Limits

A major problem is the geographical scope of the injunction.

A court in State A may have authority over:

persons within State A;

assets within State A;

proceedings before State A's courts.

But it may be much more problematic for that court to order:

“Do not enforce this judgment anywhere in the world.”

Such worldwide anti-enforcement injunctions raise substantial questions of:

jurisdiction;

comity;

sovereignty;

proportionality;

enforceability.

29. Worldwide Anti-Enforcement Injunctions

Courts may distinguish between:

Local relief

“Do not enforce against assets located in this jurisdiction.”

and

Global relief

“Do not enforce the judgment anywhere in the world.”

The second is considerably more intrusive.

The applicant must normally demonstrate a compelling justification for such extraordinary relief.

30. Balance of Convenience

Where interim relief is sought, the court may examine:

Harm to applicant

Would enforcement:

destroy assets;

create irreversible loss;

cause insolvency;

undermine legal rights?

Harm to respondent

Would an injunction:

prevent lawful enforcement;

frustrate a final judgment;

cause significant financial harm?

Public interest

Would the order:

undermine international cooperation?

interfere with EU judicial trust?

disrupt arbitration?

conflict with international conventions?

31. Adequate Alternative Remedy

A court may refuse an anti-enforcement injunction if the applicant can simply:

resist enforcement;

invoke public policy;

challenge jurisdiction;

seek annulment;

appeal the judgment;

invoke New York Convention Article V.

This reflects a fundamental procedural principle:

Exceptional equitable relief should not ordinarily replace an adequate ordinary remedy.

32. Anti-Enforcement and Res Judicata

The enforcing party may argue that the judgment is final and binding.

The applicant may respond that:

recognition has not occurred;

the judgment is void;

jurisdiction was absent;

fraud undermines finality;

public policy prevents recognition.

Courts generally attempt to avoid transforming enforcement proceedings into a complete retrial of the foreign case.

33. Anti-Enforcement and Comity

International comity means that courts should ordinarily respect the judicial acts of other sovereign jurisdictions.

It does not require blind acceptance.

But intervention should generally be:

exceptional;

justified;

proportionate;

connected to a legitimate domestic interest.

34. ECHR and Enforcement

The European Court of Human Rights has recognized that enforcement of judicial decisions forms part of effective judicial protection.

An ineffective judgment may render the right to a court practically meaningless.

At the same time, enforcement procedures must respect:

Article 6;

Article 1 Protocol No. 1;

proportionality;

legitimate expectations.

Therefore, anti-enforcement litigation can involve competing human-rights interests.

35. Practical Evidence

An applicant should assemble:

Judgment/award

certified copy;

procedural history;

reasons;

finality status.

Jurisdictional documents

service records;

contractual documents;

arbitration agreement;

jurisdiction clauses.

Enforcement documents

enforcement application;

asset-seizure documents;

registration documents;

foreign enforcement orders.

Procedural irregularity evidence

correspondence;

hearing records;

proof of lack of notice;

evidence of fraud;

expert legal opinions where necessary.

Harm evidence

financial records;

asset valuations;

insolvency evidence;

evidence of irreversible consequences.

36. Procedural Strategy

A party considering an anti-enforcement injunction should normally proceed systematically:

Step 1

Identify the judgment or award.

Step 2

Determine where enforcement is threatened.

Step 3

Identify the enforcing court's jurisdiction.

Step 4

Determine whether EU recognition rules apply.

Step 5

For an award, analyse the New York Convention.

Step 6

Identify ordinary enforcement objections.

Step 7

Determine whether exceptional injunctive relief is actually necessary.

Step 8

Demonstrate serious prejudice.

Step 9

Address comity and mutual trust.

Step 10

Seek the narrowest effective order.

37. Strongest Grounds

An anti-enforcement application is generally strongest where there is evidence of:

fraud;

absence of jurisdiction;

fundamental procedural unfairness;

lack of consent to arbitration;

serious public-policy violation;

conflict with mandatory EU law;

abuse of process;

exceptional and irreversible prejudice.

38. Weak Grounds

The application is weaker where the applicant merely argues:

foreign court made a legal error;

foreign court assessed evidence incorrectly;

applicant dislikes the result;

enforcement is inconvenient;

another court would have reached a different conclusion.

Anti-enforcement proceedings should not normally become a disguised appeal on the merits.

39. Case-Law Summary

40. Six Most Important Authorities

For a concise examination answer, the six authorities worth prioritising are:

1. Turner v Grovit — C-159/02

Mutual trust between EU Member State courts.

2. West Tankers — C-185/07

Limits on injunctions interfering with EU judicial proceedings.

3. Gazprom — C-536/13

Distinct treatment of arbitration under EU jurisdiction law.

4. Dallah — [2010] UKSC 46

Independent judicial examination of arbitration-agreement validity at enforcement stage.

5. Eco Swiss — C-126/97

Mandatory EU competition law and public policy.

6. Achmea — C-284/16

EU judicial autonomy limiting intra-EU investment arbitration.

41. Anti-Enforcement Injunctions and Public Policy: A Three-Level Analysis

A useful way of analysing these proceedings is:

Level 1 — Ordinary enforcement objection

Can recognition/enforcement simply be refused under the applicable statute or convention?

↓

Level 2 — Exceptional judicial intervention

If ordinary remedies are insufficient, should an injunction restrain the party from enforcing?

↓

Level 3 — International/EU constraints

Would the injunction improperly interfere with:

another Member State court;

the arbitral seat;

EU mutual trust;

New York Convention obligations;

international comity?

This three-stage analysis helps prevent overuse of injunctions.

42. Central Legal Formula

The basic analytical formula is:

Foreign judgment/award + threatened enforcement + jurisdictional/procedural/public-policy defect + inadequate ordinary remedy + serious prejudice + proportionality + jurisdiction of enforcing court = possible anti-enforcement relief.

But the mere existence of a defect does not automatically justify an injunction.

The court must also ask whether the appropriate remedy is instead:

refusal of recognition;

refusal of enforcement;

annulment;

appeal;

jurisdictional challenge;

stay of execution.

43. Conclusion

Anti-enforcement injunctions are exceptional remedies designed to prevent a party from enforcing a foreign judgment or arbitral award where ordinary legal mechanisms are inadequate and enforcement would produce a sufficiently serious legal injustice.

European law places particularly strong constraints on such orders because of:

EU mutual trust;

free circulation of judgments;

international comity;

arbitration autonomy;

New York Convention obligations;

finality of adjudication.

The most important distinction is between stopping enforcement through an injunction and refusing enforcement through the ordinary recognition/enforcement procedure. The latter is generally the more orthodox mechanism.

For EU court judgments, Turner and West Tankers demonstrate the strength of mutual trust and the limits on one Member State court interfering with another. For arbitration, Gazprom, Dallah, Eco Swiss, Mostaza Claro, Achmea, and Komstroy demonstrate that arbitration remains subject to judicial scrutiny, mandatory EU law, public policy and fundamental procedural safeguards.

Accordingly, the strongest anti-enforcement cases usually involve fraud, fundamental denial of due process, absence of jurisdiction, lack of consent to arbitration, serious public-policy violations, or incompatibility with mandatory EU law. An applicant should ordinarily seek the narrowest effective relief and should explain why ordinary recognition, enforcement, annulment or appeal mechanisms are insufficient.