Meta Platforms Ireland Ltd v Data Protection Commission (Approved)

Factual and Procedural Background

The Data Protection Commission ("DPC") initiated an own-volition inquiry into certain historical conduct by Company A, which had ceased the conduct prior to the inquiry. The inquiry focused on the period from May 2018, when the GDPR came into force, to September 2019, when the conduct ended. The inquiry assessed both whether Company A breached the GDPR and whether sanctions, including administrative fines, should be imposed; these issues were determined together. The DPC, as the lead supervisory authority for Company A under the GDPR, submitted its draft decision to other supervisory authorities, but consensus was reached without invoking the European Data Protection Board’s consistency mechanism.

The impugned decision, dated 25 November 2022, imposed corrective measures including a reprimand and two administrative fines totaling €265 million. Company A appealed the decision pursuant to the Data Protection Act 2018, which implements the GDPR’s requirement for effective judicial remedies against supervisory authority decisions. Parallel judicial review proceedings challenge the constitutional validity of the Data Protection Act 2018, particularly the conferral of fining powers on a non-judicial body.

Company A sought an adjournment of the domestic proceedings pending the resolution of related proceedings before the Court of Justice of the European Union ("CJEU") initiated by another entity, referred to as the WhatsApp proceedings. Both parties agree that some issues in the domestic proceedings should await the outcome of the EU proceedings, but disagree on whether a modular trial should proceed on issues not affected by the EU proceedings.

The corrective measures in the DPC’s decision have been complied with, and Company A cannot be compelled to pay the fines until the domestic appeal is resolved. The parties agree that issues related to the interpretation of Article 83 of the GDPR, concerning administrative fines, should be deferred pending the outcome of the WhatsApp proceedings before the CJEU. Consequently, the administrative fines will not become legally effective until after the EU proceedings conclude.

Legal Issues Presented

1. Whether the domestic proceedings should be adjourned pending the resolution of the WhatsApp proceedings before the CJEU.
2. Whether a modular trial should be directed to hear and determine issues in the domestic proceedings that are not directly affected by the EU proceedings.
3. The proper interpretation of Article 83 of the GDPR regarding the imposition and calculation of administrative fines.
4. The constitutional validity of the Data Protection Act 2018, specifically the conferral of fining powers on a non-judicial body.

Arguments of the Parties

Appellant's Arguments

• The entire domestic proceedings should be adjourned pending the outcome of the WhatsApp proceedings before the CJEU.
• The national court should stay proceedings when the same issue is subject to a case before the European Court, citing the obligation of sincere co-operation under EU law.
• The interpretation of Article 83 of the GDPR is central and unresolved, and the domestic court should await the CJEU’s ruling to avoid incorrect determinations.

Respondent's Arguments

• The High Court is obliged under EU law to determine the domestic proceedings expeditiously and should direct a modular trial for issues not affected by the EU proceedings.
• The threshold for adjournment is high, requiring demonstration of a real risk of serious or irreparable damage or very real risk of prejudice if adjournment is refused.
• The DPC relied on case law emphasizing the importance of allowing prima facie valid decisions to be executed in an orderly manner.

Table of Precedents Cited

Precedent	Rule or Principle Cited For	Application by the Court
Zuckerfabrik, Joined Cases C-143/88 and C-92/89, EU:C:1991:65	Legal test for imposing a stay requiring a high threshold of real risk of serious or irreparable damage.	The court found this precedent inapplicable as it concerned suspension of EU legislation, not a suspensive effect of an appeal under the GDPR.
Okunade v. Minister for Justice and Equality [2012] IESC 49	Importance of allowing prima facie valid decisions to be executed in an orderly way.	The court distinguished the DPC’s first-instance decision from final decisions considered in Okunade, noting the suspensive effect of appeals under the GDPR.
Masterfoods Ltd, Case C-344/98, EU:C:2000:689	National courts should stay proceedings when the same issues are before the European Court.	The court noted the appellant’s reliance on this case but found the legal test less extreme and requiring a balancing exercise.
O'Leary v. An Bord Pleanála [2008] IESC 55	Court’s discretion to grant adjournments in the interests of justice.	The court applied this principle to exercise discretion in deciding whether to adjourn the proceedings.
SCHUFA Holding, Joined Cases C‑26/22 and C‑64/22, EU:C:2023:958	National courts must have full jurisdiction to examine all questions of fact and law relating to GDPR disputes.	The court acknowledged this to affirm the necessity of an effective judicial remedy under the GDPR.
McCann v. Desmond [2010] IEHC 164	Criteria for directing a modular trial.	The court applied these criteria in assessing whether a modular trial was appropriate in the present case.
Cork Plastics (Manufacturing) v. Ineos Compound U.K. Ltd [2008] IEHC 93	Additional factors relevant to modular trials including complexity, overlap of evidence, and risk of delay.	The court considered these factors in its analysis of modular trial suitability.

Court's Reasoning and Analysis

The court recognized that both the domestic proceedings and the EU proceedings concern the interpretation of the GDPR, particularly Article 83 on administrative fines. It noted that the DPC’s decision had a suspensive effect on enforcement of fines pending appeal and that the fines would not become legally effective until after the EU proceedings conclude.

Given the parties’ agreement that certain issues cannot be determined before the EU proceedings are resolved, the court considered whether a modular trial should proceed on other issues. Applying established criteria for modular trials, the court found that the issues of liability and sanction are inextricably linked and cannot be separated without prejudice. The DPC’s own inquiry did not separate these issues, reinforcing this conclusion.

The court also reasoned that a modular trial risked prolonging the proceedings due to potential fragmented appeals and multiple preliminary references to the CJEU, which would be inefficient. The court emphasized that the delay caused by adjournment is effectively already "locked in" because the fines cannot be enforced until the EU proceedings conclude.

Furthermore, the constitutional challenge to the Data Protection Act 2018 requires interpretation of the Act as a whole, which is intertwined with the interpretation of the GDPR provisions under consideration in the EU proceedings. Thus, partial adjudication would be artificial and potentially prejudicial.

Consequently, the court exercised its discretion to adjourn the domestic proceedings in their entirety pending the outcome of the WhatsApp proceedings before the CJEU, rather than direct a modular trial.

Holding and Implications

The court ORDERS that the statutory appeal and related judicial review proceedings brought by Company A be adjourned generally to await the outcome of the WhatsApp proceedings currently pending before the Court of Justice of the European Union.

This decision means that no part of the domestic proceedings will proceed until the EU proceedings conclude, ensuring that the interpretation of the GDPR, particularly Article 83, is informed by the CJEU’s ruling. The administrative fines imposed by the DPC will not become legally effective until after the EU proceedings are resolved. The court found that a modular trial was not appropriate due to the intertwined nature of the issues and the risk of inefficiency and prejudice.

No new precedent was established beyond the application of existing principles governing adjournments, modular trials, and the interplay between domestic and EU proceedings.