Mulligan — High Court set aside leave for judicial review because a statutory disciplinary appeal was the proper remedy

Case
John Mulligan v Commissioner of An Garda Síochána
Court
High Court (Ireland)
Judge
Siobhán Phelan (Michael D. Higgins, 2021)
Date Decided
31 July 2026
Citation
[2026] IEHC 569
Topics
Judicial review, Garda discipline, Alternative remedies, Statutory appeals

Background

John Mulligan, a Garda member, faced disciplinary proceedings arising from sexual activity with an intoxicated 17-year-old, driving while intoxicated, and allegedly using Garda credentials to obtain a sexual favour or advantage. After a GSOC investigation and a Board of Inquiry conducted under the Garda Síochána (Discipline) Regulations 2007, the Board found four breaches of discipline proved and recommended dismissal. The Commissioner accepted those recommendations and directed Mulligan’s dismissal on 18 March 2026.

Mulligan obtained leave from the High Court on 30 March 2026 to seek orders quashing the Board’s report and the Commissioner’s decision. The leave order expressly reserved whether the statutory appeal under Regulation 33 was an adequate alternative remedy. Mulligan lodged an appeal after the seven-day deadline and was refused an extension of time. The Commissioner then applied to set aside the leave order on the ground that Mulligan should have pursued the statutory appeal.

The Court’s Holding

Ms. Justice Siobhán Phelan held that the Regulation 33 appeal provided an extensive corrective jurisdiction capable of addressing every complaint pleaded by Mulligan. His challenges concerning procedural fairness, the treatment of the complainant’s withdrawal, evidential sufficiency, factual findings, delay, and proportionality of dismissal all fell within the grounds and remedial powers of the Appeal Board.

The Court rejected the suggestion that the complainant’s withdrawal created an arguable jurisdictional defect. The statutory disciplinary process did not depend on the existence or continuation of an individual complaint, and the underlying GSOC referral and disciplinary framework permitted proceedings based on the established facts and Mulligan’s admissions. Nor did the different framing of the disciplinary allegations from GSOC’s recommendations create a jurisdictional issue requiring immediate judicial review.

Applying Amariei v Chief Appeals Officer [2026] IESC 22 and A.B. v Chief International Protection Officer [2026] IESC 23, the Court concluded that the grant of leave was plainly wrong and set it aside. The adequacy of the appeal had to be assessed when it was available; Mulligan could not make that remedy inadequate by failing to invoke it in time. The Court left questions concerning the refusal to extend time and the obligation to establish an Appeal Board analytically separate, with final orders to be settled later.

Key Takeaways

  • Judicial review will ordinarily not proceed where a specialist statutory appeal can address the applicant’s factual, evidential, procedural, and proportionality complaints.
  • An expired appeal deadline does not transform a formerly adequate statutory remedy into an inadequate one.
  • A complainant’s withdrawal did not deprive the Garda disciplinary process of jurisdiction because the governing legislation and regulations did not make that process dependent on a continuing individual complaint.

Why It Matters

The judgment reinforces the requirement that litigants exhaust adequate statutory appeal mechanisms before seeking judicial review, particularly where the appellate body can reconsider evidence, hear submissions, correct procedural defects, quash findings, alter sanctions, or direct a new inquiry.

It also shows that the exceptional power to set aside leave may be exercised when later authority and adversarial argument establish that leave was plainly wrongly granted, even where doing so may leave an applicant without a remedy because the statutory appeal was not filed in time.

⬇ Download the original opinion (PDF)Archived from the court's official source.
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