[2024] UKSC 12
On appeal from: [2022] EWCA Civ 379
JUDGMENT
Secretary of State for Business and Trade (Respondent) vMercer (Appellant)
before
Lord Lloyd-Jones
Lord Hamblen
Lord Burrows
Lord Richards
Lady Simler
17 April 2024
Heard on 12 and 13 December 2023
Appellant
Michael Ford KC
Stuart Brittenden
Alan Bogg
(Instructed by UNISON Legal Services (London))
Respondent
Daniel Stilitz KC
Hannah Slarks
(Instructed by Government Legal Department)
LADY SIMLER (with whom Lord Lloyd-Jones, Lord Hamblen, Lord Burrows and Lord Richards agree):
Introduction
Employees who are dismissed for taking part in lawful strike action have some statutory remedies for unfair dismissal but there is no express statutory (or other) protection in domestic law against action short of dismissal for employees, or indeed, workers who participate in lawful strike action. The question on this appeal is whether section 146 of the Trade Union and Labour Relations (Consolidation) Act 1992 (“TULRCA”) can properly be interpreted as extending to provide such protection, and if not, what is the consequence.
Fiona Mercer, the appellant, was at all material times employed as a support worker in the care sector by Alternative Futures Group Ltd (“AFG”), a care services provider. As a UNISON workplace representative, she was involved in planning and took part in lawful strike action at her workplace. She was suspended by her employer. During her suspension she received normal pay, but received nothing for the overtime she would normally have worked. The effect, if not the purpose, of the suspension was also to remove her from the workplace while the industrial action was in progress. She complained to an employment tribunal that the decision to suspend her was taken for the sole or main purpose of preventing or deterring her from taking part in the activities of an independent trade union “at an appropriate time” or penalising her for having done so. Her claim was disputed as a matter of fact (her employer argued that the suspension was because she abandoned her shift without permission and spoke to the press without permission) and as a matter of law.
As a matter of ordinary domestic construction, section 146 of TULRCA has been interpreted as not providing protection from detriment short of dismissal to workers engaged in lawful strike action. This is because the words “at an appropriate time” are defined to exclude working time (save where the employer has consented to the activities in question) so that they limit the protection available to activities which are outside working time and/or not inconsistent with the worker’s performance of their primary duties to their employer. However, the appellant argues that the protection afforded by article 11 of the European Convention on Human Rights (“the Convention”) together with the strong interpretative obligation in section 3 of the Human Rights Act 1998 (“the HRA”) make it possible to construe section 146 compatibly with article 11 to offer extended protection to workers for detriment short of dismissal for participation in lawful strike action.
This case has proceeded on assumed facts to determine the scope of section 146 as a preliminary question of law. It is assumed for these purposes that the decision to suspend the appellant was taken to deter her participation in lawful strike action. In the Employment Tribunal, Employment Judge Franey (who expressed well-founded reservations about whether it was appropriate to proceed in this way) held that, as a matter of domestic law, section 146 of TULRCA does not extend protection to participation in lawful strike action and could not be interpreted compatibly, even using the section 3 interpretative obligation. On appeal, the Secretary of State for Business and Trade (referred to below as “the Secretary of State”) intervened to support the Employment Tribunal’s decision. The decision was reversed by the Employment Appeal Tribunal: [2021] ICR 1598. Choudhury J (President) held that a compatible interpretation with article 11 was both necessary and possible by adding an additional limb to the definition of “appropriate time” in section 146(2), namely “(c) a time within working hours when he is taking part in industrial action”.
The Secretary of State (but not the employer) appealed. In the Court of Appeal, Ms Mercer recognised that the formulation of additional limb (c) went too far because it did not qualify the type of industrial action covered. She accepted the criticism made by the Secretary of State that the EAT’s reformulated section 146(2) went beyond any protection recognised by the European Court of Human Rights, which had been concerned only to protect lawful industrial action in appropriate circumstances. Since the mirror principle in R (Ullah) v Special Adjudicator [2004] UKHL 26, [2004] 2 AC 323 at para 20 and R (Elan-Cane) v Secretary of State for the Home Department [2021] UKSC 56, [2023] AC 559 at para 101 requires domestic courts generally to keep pace with Strasbourg, no less but no more, it was accepted that the reading down of section 146(2) should only be applicable to industrial action which is lawful under domestic law. Accordingly, a reformulated amendment to section 146(2) was proposed: the new subparagraph (c) added to the definition of “an appropriate time” in section 146(2) should state, “(c) in respect of a detriment short of dismissal, a time within working hours when he is taking part in protected industrial action within the meaning of section 238A(1)”.
The Court of Appeal (Lord Burnett of Maldon CJ, Bean and Singh LJJ) allowed the Secretary of State’s appeal: [2022] EWCA Civ 379, [2022] ICR 1034. In summary, the court held, first, that lawful industrial action is not included within the phrase “activities of an independent trade union” in section 146 as a matter of legislative design. Secondly, the court said that this failure to give legislative protection against any sanction short of dismissal for participation in lawful strike action may put the United Kingdom in breach of article 11 even in the case of a private sector employer, if the sanction is one which strikes at the core of trade union activity. Thirdly, however, the court held that to interpret section 146(2) compatibly with article 11 would result in impermissible judicial legislation. Finally, the court held that it would not be appropriate to grant a declaration of incompatibility pursuant to section 4 of the HRA because the case involved a lacuna in the law rather than a specific statutory provision that was incompatible, and moreover, the extent of the incompatibility was unclear.
The appellant now appeals with permission to the Supreme Court. The appeal is resisted by the Secretary of State. There are three grounds of appeal:
Ground 1 concerns the extent to which article 11 of the Convention protects union members against sanctions which are intended to dissuade or penalise them for taking part in taking lawful industrial action organised by their union, and whether, on the assumed facts, the UK was in breach of a positive duty to provide effective protection to the appellant through the means of section 146.
Ground 2 concerns whether the Court of Appeal erred in deciding that a compliant construction of section 146 of TULRCA which protects union members against being subjected to detriments because of participation in trade union activities, was not possible under section 3 of the HRA.
If a compliant interpretation of section 146 of TULRCA is not possible, ground 3 concerns the question whether the Court of Appeal erred in refusing to grant a declaration of incompatibility under section 4 HRA.
The legal framework
TULRCA draws a distinction between “employees” and “workers” and defines these and related expressions in sections 295 and 296 respectively. An employee is an individual who has entered into or works under a contract of service or apprenticeship. The term “worker” is a wider concept and includes an individual who works under any contract whereby he or she undertakes to do or perform personally any work or services for another party to the contract who is not their professional client. Certain protections afforded by TULRCA are limited to employees. The protection against dismissal in circumstances discussed below in section 152 is only available to employees. Other protections are afforded to workers, and section 146 is an example.
Part III of TULRCA concerns rights in relation to union membership and activities. Section 146 in Part III is central to this appeal. It is headed “Detriment on grounds related to union membership or activities” and, so far as relevant, provides:
A worker has the right not to be subjected to any detriment as an individual by any act, or any deliberate failure to act, by his employer if the act or failure takes place for the sole or main purpose of –
...
preventing or deterring him from taking part in the activities of an independent trade union at an appropriate time, or penalising him for doing so ...”
What is an “appropriate time” is defined in section 146(2) as follows:
In subsection (1), ‘an appropriate time’ means –
a time outside the worker’s working hours, or
a time within his working hours at which, in accordance with arrangements agreed with or consent given by his employer, it is permissible for him to take part in the activities of a trade union ...;
and for this purpose ‘working hours’, in relation to a worker, means any time when, in accordance with his contract of employment (or other contract personally to do work or perform services), he is required to be at work.”
The remedy for a breach of section 146 is a complaint to an employment tribunal under section 147. If the tribunal finds that the complaint is well-founded, it makes a declaration to that effect and may make an award of compensation (including for injury to feelings) under section 149 of TULRCA.
Section 152 provides corresponding protection against dismissal (as opposed to detriment short of dismissal) and is in similar terms. It makes it automatically unfair to dismiss an employee (but not a worker who is not an employee) for the same proscribed reasons, including taking part in trade union activities at an appropriate time:
For the purposes of Part X of the Employment Rights Act 1996 (unfair dismissal) the dismissal of an employee shall be regarded as unfair if the reason for it (or, if more than one, the principal reason) was that the employee -
…
had taken part, or proposed to take part, in the activities of an independent trade union at an appropriate time…”
Section 152(2) defines “an appropriate time” in the same way as section 146, but because this provision concerns rights conferred only on employees, the wording of the definition of working hours is slightly different. Neither side suggests that anything turns on that distinction for present purposes.
Part III of TULRCA also contains provisions dealing with time off for trade union duties and activities. For example, section 170 provides so far as material:
An employer shall permit an employee of his who is a member of an independent trade union recognised by the employer in respect of that description of employee to take time off during his working hours for the purpose of taking part in –
any activities of the union, and
any activities in relation to which the employee is acting as a representative of the union.
The right conferred by subsection (1) does not extend to activities which themselves consist of industrial action, whether or not in contemplation or furtherance of a trade dispute.”
Part IV of TULRCA is concerned with industrial relations but none of its provisions are directly relevant to this appeal.
Part V of TULRCA is headed “Industrial Action”. It contains the conditions with which a trade union must comply before calling industrial action to attract the statutory immunity from civil action by the employer that is available under the so-called “golden formula” in section 219. At common law, almost any form of strike or industrial action amounts to a repudiatory breach of contract, entitling the employer summarily to dismiss striking workers, to withhold their pay, to impose disciplinary sanctions or to sue individual strikers for damages. In addition, a union calling industrial action will almost invariably commit an economic tort, typically inducing breach of contract, making it liable to an action for an injunction or a claim for damages. By section 219 of TULRCA (dating back to the Trade Disputes Act of 1906) a trade union is given immunity in respect of certain economic torts. The immunity is restricted both substantively and procedurally in important respects.
Substantively, it only applies if the strike is “in contemplation or furtherance of a trade dispute” (as defined in section 244 by reference to matters relating to terms and conditions of employment and the like). Further, it does not apply to some forms of industrial action, including “secondary” action, where the target of the strike is an employer who is not a party to the trade dispute. Procedurally, the immunity only applies if the union has complied with a series of detailed statutory rules on balloting, providing information to the employer and notice requirements: see section 219(4). Among other things, the union must send the employer information about the numbers, categories and workplaces of those to be balloted (section 226A); appoint an independent scrutineer (section 226B); hold a postal ballot (sections 227 to 230); not strike unless 50% of those members entitled to vote have cast a vote with a simple majority in favour (and in certain public sector employments, this must be at least 40% of those entitled to vote) (section 226); provide the members and employer with the result of the ballot (sections 231 to 231A); obtain a scrutineer’s report (section 231B); ensure that only the specified person calls for action (section 233); not take action outside the period of the effectiveness of the ballot (section 234); and give advance notice to the employer containing prescribed information about the workers whom the union believes will take part in the action (section 234A). A breach of any of these provisions deprives the union of its trade dispute immunity. It also has the effect that the action is not “protected” for the purpose of protection from dismissal, otherwise automatically unfair by virtue of section 238A described below.
In addition, Part V of TULRCA contains provisions governing the statutory right to claim unfair dismissal for those dismissed while taking part in industrial action. In short summary, employees taking part in unauthorised (or unofficial) industrial action have no right to complain of unfair dismissal, save in limited circumstances (section 237) which do not include dismissal for trade union activities under section 152. Where the industrial action is official, the right to complain of unfair dismissal is limited to two situations (section 238). The first is where the employer engages in selective dismissals (retaining other striking employees in the same position or swiftly re-engaging them after dismissal). The second is where the reason or principal reason for dismissal is one of a small number of automatically unfair reasons (but the reasons specified do not include dismissal because of trade union activities under section 152, although they do include dismissal because of taking official industrial action to which section 238A applies). Section 238A applies to employees dismissed for taking part in “protected industrial action”. Such a dismissal is automatically unfair where the dismissal takes place within a “protected period”, in general 12 weeks from the first day of industrial action, but it can extend for a longer period where the employer does not take reasonable procedural steps to resolve the strike. “Protected industrial action” means industrial action in respect of which the union has immunity in tort because it has complied with the substantive and procedural statutory rules contained in Part V of TULRCA.
Industrial action potentially engages both articles 10 and 11 of the Convention, but article 11 is usually treated as the lex specialis for trade union organised industrial action.Article 11 protects two distinct but linked rights: freedom of assembly and freedom of association. Both rights relate to individuals coming together to express and protect their common interests. Lawful industrial action typically engages both rights. Article 11 provides:
Everyone has the right to freedom of peaceful assembly and to freedom of association with others, including the right to form and to join trade unions for the protection of his interests.
No restrictions shall be placed on the exercise of these rights other than such as are prescribed by law and are necessary in a democratic society in the interests of national security or public safety, for the prevention of disorder or crime, for the protection of health or morals or for the protection of the rights and freedoms of others. This Article shall not prevent the imposition of lawful restrictions on the exercise of these rights by members of the armed forces, of the police or of the administration of the State.”
Both articles were given effect in domestic law by section 1 of the HRA. Section 2(1) of the HRA provides:
“A court or tribunal determining a question which has arisen in connection with a Convention right must take into account any … judgment, decision, declaration or advisory opinion of the European Court of Human Rights … whenever made or given, so far as, in the opinion of the court or tribunal, it is relevant to the proceedings in which that question has arisen.”
Section 3 is headed “Interpretation of legislation” and reads as follows:
So far as it is possible to do so, primary legislation and subordinate legislation must be read and given effect in a way which is compatible with the Convention rights.
This section -
applies to primary legislation and subordinate legislation whenever enacted;
does not affect the validity, continuing operation or enforcement of any incompatible primary legislation; and
does not affect the validity, continuing operation or enforcement of any incompatible subordinate legislation if (disregarding any possibility of revocation) primary legislation prevents removal of the incompatibility.”
Section 4 of the HRA empowers the senior courts to make a declaration that a provision is incompatible with a Convention right. So far as material it provides:
Subsection (2) applies in any proceedings in which a court determines whether a provision of primary legislation is compatible with a Convention right.
If the court is satisfied that the provision is incompatible with a Convention right, it may make a declaration of that incompatibility.”
By section 4(6) of the HRA, a declaration of incompatibility does not affect the continuing validity of the relevant provision and nor is it binding on the parties in the proceedings.
The facts and the lower courts’ reasoning in more detail
The appellant was employed as a support worker by AFG from 2009 and was a workplace representative for UNISON, the recognised union for collective bargaining with AFG on behalf of its members. Her employment ceased in 2022.
In early 2019 there was a trade dispute between AFG and UNISON about the removal of “top-up” payments for sleep-in shifts at AFG’s care homes. UNISON went through the procedural requirements in Part V of TULRCA relating to balloting and notification, and called a series of strikes which ran intermittently between 2 March and 14 May 2019. The appellant was involved in planning and took part in the industrial action. She was interviewed by iNews in connection with the strike, in January 2019, and press material appeared in the Liverpool Echo in late March 2019. She also participated in the strikes herself.
On 26 March 2019 she was suspended. She was told this was because of allegations that she had abandoned her shift on two separate occasions without permission, and that she had spoken to the press about the strike action without prior authorisation in a way which conveyed confidential information and was considered likely to bring AFG into disrepute. The suspension was lifted on 11 April 2019, but disciplinary action against her continued. On 26 April 2019 the appellant was given a first written warning for leaving her shift. That sanction was overturned on appeal. A grievance which she filed in June 2019 was rejected, and an appeal against that decision was also unsuccessful.