1) Introduction
In Langan v Mandate Trade Union (Approved) [2026] IEHC 263, the High Court (Bolger J) granted
interlocutory (mandatory) injunctive relief restraining a trade union from giving effect to an interim suspension that
prevented the plaintiff (a union member and sitting National Executive Council (“NEC”) member) from participating in imminent
internal elections.
The dispute arose after the plaintiff—who had raised internal governance concerns and circulated an election profile critical of
“waste” and “poor financial oversight”—was suspended by an NEC decision pending an “independent investigation” into staff
complaints alleging conduct injurious to the union and/or unbecoming of a member. The suspension, communicated shortly before a
Biennial Delegate Conference (“BDC”) election, purported to bar her from “any union activities, including participating in union
elections.”
The core interlocutory issues were whether (i) the union’s rules conferred (expressly or by implication) a power to impose an
interim suspension of membership/NEC participation pending investigation; (ii) minimum fair procedures applied, and were observed,
before imposing such a suspension; and (iii) the balance of justice favoured intervention given the proximity of the election and
the parties’ agreement that damages were inadequate.
3) Analysis
3.1 The interlocutory injunction framework applied
Because the relief was “clearly mandatory” (undoing a suspension and compelling non-interference with candidacy), the Court applied
the “strong case” threshold (citing Maha Lingam [2006] ELR 137) and the requirement, per
Merck Sharp and Dohme v Clonmel Healthcare [2020] 2 IR 1, that the plaintiff demonstrate that a substantially similar
injunction might be obtained at trial. The Court then addressed the balance of justice, including the status quo and whether a meaningful
trial could occur before the relevant event (the election) passed.
The parties agreed that damages were not an adequate remedy, sharpening the focus on legality/fairness and the least risk
of injustice.
3.2 Preliminary bars to equitable relief: rejected
(a) “Unclean hands” / lack of candour (membership and employment status)
The union argued the plaintiff had misrepresented employment status and was not entitled to contest elections. Bolger J held that a
lack of candour must have a sufficient nexus to the equitable relief sought and found the nexus unproven on the interlocutory
evidence. Notably, the Court took judicial note of the distinction between temporary incapacity and unemployment in social protection
terms, and accepted there was merit in the plaintiff’s argument that her contractual right to participate in union democracy without
disability discrimination (invoking Rule 25.2) would be implicated by the union’s stance.
(b) Pre-litigation conduct (email to staff threatening escalation)
The union relied on O'Longain v Burke [2023] IEHC 22 to argue discretion to refuse equitable relief based on conduct.
The Court distinguished the present facts from the “egregious” contempt context discussed in the Burke litigation and held the plaintiff’s
conduct did not justify refusing relief where the claim concerned unlawful suspension and denial of fair procedures.
(c) Delay
The Court held there was no culpable delay: there was ongoing engagement and legal correspondence from late March to mid-April in the
shadow of a looming election, and it would be unfair to penalise a plaintiff for not rushing to court without allowing engagement.
(d) Alternative statutory remedy (Protected Disclosures Act)
The Court rejected the argument that the plaintiff should have proceeded only by a further WRC penalisation complaint and Circuit Court
interim relief under s. 12. The suspension post-dated the earlier WRC complaint; the plaintiff advanced wider contractual/fair procedures
challenges not confined to penalisation; and the union itself contested her Protected Disclosures Act coverage, making it reasonable that
she pursued High Court relief.
(e) Prematurity (investigation ongoing)
The union cited Rowland v An Post [2017] IESC 20 to resist court intervention mid-process. The Court held this was
misplaced: the plaintiff did not seek to restrain the investigation or the appointment of the independent investigator; rather, she sought
to restrain the effects of a suspension that would irreversibly deprive her of participation in an imminent election.
3.3 The claimed Protected Disclosures Act basis: not a “strong case” at this stage
Although the plaintiff argued an entitlement to injunctive relief on a “s. 13” footing and sought damages for “the tort of detriment,” the
Court noted s. 13 was not referenced in the plenary summons or notice of motion. The union raised the statutory election issue under
s. 13(2)(b) (that a claimant must elect between s. 12 and s. 13 routes for the “same matter”). While the Court acknowledged it
may sometimes craft relief beyond a notice of motion (referring to Bhblasted S.R.L Societa Benefit & Ors v Meta Platforms Ireland Ltd),
it declined to treat the plaintiff as having established a strong case on s. 13 for the interlocutory application. The point was left for trial.
3.4 The pivotal issue: did the rules permit interim suspension pending investigation?
(a) Constitutional and contractual context for union members’ rights
Bolger J emphasised that, whatever interpretative role a union president/NEC may claim, the rulebook cannot “be above the law.”
The Court located union membership rights within a contractual framework informed by constitutional values, citing:
Geoghegan v Institute of Chartered Accountants [1995] 3 IR 86,
Glover v BLN [1973] IR 388,
Doyle v Croke (Unreported decision of the High Court, 6 May 1988), and
Rogers v ITGWU (Unreported decision of the High Court, 15 March 1978).
The Court treated participation in a union’s democratic processes as a corollary of the constitutional right to form associations/trade unions.
(b) Rule 13.1: a limited office-suspension power pending conference determination
Rule 13.1 authorises the NEC to suspend an officer/ordinary NEC member from office for specified reasons
pending determination by the BDC or a Special Delegate Conference. The Court held this did not match what was done:
the suspension was framed as an interim step “to facilitate” investigation; it purported to suspend union membership and NEC participation;
and the letter implementing the decision did not refer to any pending determination by BDC/Special Delegate Conference as Rule 13.1 envisages.
(c) Rules 26.1 and 26.4: investigation/complaints handling powers, not a free-standing “suspend to facilitate investigation” power
Rule 26.1 empowers the NEC to investigate written complaints about member conduct. Rule 26.4 governs how the NEC will consider complaints
“in whatever way they consider appropriate” consistent with natural justice and fair procedures and addresses hearing and representation.
The Court drew a sharp distinction between “considering a complaint” and “facilitating an investigation.” Crucially, the union provided no evidence
explaining why suspension was necessary to facilitate the investigation, nor how suspension was part of an appropriate complaint-consideration process.
(d) Discretion must be exercised rationally and for proper purposes
Referring to “O'Sullivan” and its endorsement of Braganza v BP Shipping Limited & Anor [2015] 1 W.L.R. 1661,
the Court underscored that discretionary decisions must not be arbitrary, capricious, or irrational; and the process must exclude extraneous considerations
and account for obviously relevant ones. On the evidence, the plaintiff was not given sufficient reasons to understand why suspension was necessary.
(e) Rule 25.1 (“Rights of Members”) did not support an implied suspension power
The union’s reliance on Rule 25.1 (defining “member” for rights/entitlements and referencing being “suspended ... or under disciplinary sanction”)
was rejected: the Court treated it as definitional within “Rights of Members,” not an express or implied conferral of a free-standing interim suspension power.
(f) The attempted importation of UK implication reasoning: Evans distinguished
The union relied on Evans v Prospect & Ors [2025] EAT 143 to argue for an implied precautionary suspension power
using business efficacy/officious bystander logic. Bolger J found it unpersuasive in the Irish context (including the constitutional dimension),
and in any event distinguished it: Evans involved allegations of sexual harassment where suspension could be a protective measure.
The judgment noted the reference in Evans to Lewis v Heffer on implying such a power where necessary for fair investigation without further risk.
(g) Irish authority emphasising evidential necessity: Bank of Ireland v Reilly
The Court aligned the present facts with Bank of Ireland v Reilly [2015] IEHC 241, where Noonan J criticised the absence
of evidence as to why suspension was necessary, supporting an inference that suspension was punitive rather than investigatory.
Similarly here, the absence of evidence explaining necessity was fatal to the union’s claim that suspension was to “facilitate” investigation.
(h) Result on rules/power
The Court concluded the plaintiff had a strong case that the rulebook did not permit the interim suspension in the manner imposed, and that the
circumstances and evidential record were “entirely insufficient” to imply such a power.
3.5 Fair procedures: minimum standards apply to union suspensions affecting democratic participation
(a) Minimum fairness for suspension decisions
The Court treated the suspension as materially affecting important rights and held that minimum fair procedures apply to a union’s decision to suspend
a member (by analogy with employment suspension cases). It relied on Bank of Ireland v Reilly, Sullivan v HSE [2023] IESC 11,
and Mason v ILTT Ltd [2021] IEHC 477, while emphasising the constitutional context of union democracy (including
Doyle v Croke and Rogers v ITGWU).
(b) What fairness required (and what was missing)
Applying Sullivan v HSE, the Court stated the basic requirement: where a suspension is contemplated, the person should be informed and
afforded an opportunity to make representations as to why it should not occur. On the facts, the plaintiff was never put on notice that her suspension
would be considered at the relevant NEC meeting, was absent for health reasons, and had no opportunity to address the proposal before the decision.
(c) The “fresh consideration” argument failed
The union argued that later consideration of emails/solicitors’ correspondence at a subsequent NEC meeting amounted to sufficient process “in the round.”
The Court rejected this: it was not an opportunity to make representations before the contemplated suspension; it involved the same decision-making body;
and the account of the meeting suggested focus on defending litigation and reputation rather than a fair re-evaluation of whether suspension was necessary.
(d) Result on fair procedures
The plaintiff established a strong case that the suspension was imposed and affirmed in breach of minimum fair procedures.
3.6 Balance of justice and practical consequences
With damages inadequate and the election imminent, refusing relief would irreversibly deprive the plaintiff of the opportunity to contest and participate
in the BDC election determining NEC composition for two years. Granting relief restored participation, while leaving open the trial’s capacity to determine
ultimate legality and any consequences for the election outcome.
The Court noted Rule 12 (complaints to a Returning Officer about election rule breaches) as potentially relevant, but observed that a suspension barring all
union activity would prevent the plaintiff from invoking the internal remedy in the meantime. The Court also emphasised the absence of evidence that her
participation would interfere with the independent investigation; tailored protective measures might be possible, but blanket suspension was not shown necessary.
3.7 Likely impact
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Trade union governance: The decision signals that interim suspensions affecting democratic participation require clear rulebook authority
or demonstrated necessity; general investigatory/complaints clauses will not automatically justify suspension “to facilitate” investigation.
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Reason-giving and evidential burden: Where suspension is defended as precautionary, decision-makers should be able to articulate (and later evidence)
why it is necessary and proportionate to the investigative aim, consistent with the rationality constraints reflected in Braganza-type reasoning.
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Procedural discipline: Even “minimum” fair procedures—notice and a chance to be heard—are required before suspending a member in a way that
materially interferes with membership rights, particularly participation in union elections.
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Protected disclosures interface: The judgment illustrates that protected disclosure proceedings may run in parallel with contractual/fair procedures
challenges, but that statutory injunctive routes (s. 12/s. 13) must be properly pleaded and navigated.