A recent employment tribunal ruling involving an NHS Trust has brought renewed attention to a growing area of exposure for UK employers, and a potential pressure point for employment practices liability insurers, as workplace inclusion policies collide with evolving legal interpretation.
The case, centred on the use of single-sex changing facilities at Darlington Memorial Hospital, concluded that County Durham and Darlington NHS Foundation Trust had indirectly discriminated against female nurses by allowing a transgender colleague to use the female changing room. Crucially, the tribunal found responsibility lay not with the individual employee, but with management decisions and internal policy.
While the ruling is binding only on the parties involved, it carries wider relevance for large employers, particularly in the public sector, where workforce scale, policy consistency and governance decisions can materially shape exposure to employment practices liability (EPL) claims.
At the heart of the ruling was the Trust’s former “Transitioning in the Workplace” policy, which stated that transgender employees were legally permitted to use facilities of their choosing, with alternative arrangements expected to be made by others. The tribunal concluded the policy misunderstood equality law and went as far as to describe it as unlawful.
The policy was withdrawn following a Supreme Court ruling clarifying that, under the Equality Act 2010, the definition of a woman is based on biological sex. That ruling has since become a reference point for tribunals assessing disputes over access to single-sex spaces, including the Darlington case.
For insurers, the outcome underlines how internal policy decisions, even those intended to be inclusive, can become a direct trigger for discrimination or harassment claims when tested through tribunal. Importantly, the tribunal found no improper behaviour by the transgender employee involved, reinforcing that liability exposure arose from governance rather than individual conduct.
Legal advisers say the ruling provides important clarification on how tribunals may approach liability where workplace policies conflict with statutory requirements.
Polly Sayers, legal advisor and insurance market analyst at HCR Law, said the tribunal confirmed that employer policies themselves can amount to actionable conduct under equality law.
She noted that the tribunal held the Trust’s policies could constitute “conduct” for the purposes of section 26 of the Equality Act 2010, meaning that “if an employer adopts and implements a policy which is inconsistent with legislative and regulatory requirements, its mere existence could amount to harassment”.
The tribunal also rejected arguments that reliance on internal or external guidance offered protection. “The Trust contended that they relied on internal and external guidance when creating their policies, however this was no defence to the policy’s unlawfulness,” Sayers said, adding that employers “cannot simply rely on guidance without undertaking an independent assessment of all applicable legal requirements”.
She also highlighted the tribunal’s distinction between individual and organisational responsibility. “The Tribunal’s decision confirms that employers may be directly liable for harassment arising for policies they adopt and implement, even where the individual employee acting under the policy is not personally liable,” Sayers said.
Although employment tribunals do not establish legal precedent, they offer insight into how courts are interpreting equality law in practice. In Darlington, the dispute ran for more than two years and involved multiple complainants, highlighting the potential for prolonged proceedings and escalating defence costs.
Michael Lea, head of management liability at Lockton Companies LLP, said employment practices liability insurance is designed to respond to these scenarios.
“Employment Practices Liability (EPL) insurance provides critical financial safeguards when facing potential claims related to discrimination, harassment, or other allegations of wrongful employment practices,” Lea said.
However, he noted that exposure can arise even where employers believe they are acting lawfully. “Organisations remain vulnerable to claims even when acting in good faith to balance competing rights, and when employment policies are challenged through a tribunal or an appeals process, legal defence costs can escalate rapidly.”
That dynamic places greater emphasis on policy clarity and consistency, particularly for organisations operating across jurisdictions. “To mitigate this risk, employers must ensure clear documentation of workplace policies, which are applied consistently and regularly reviewed throughout the organisation,” Lea said.
While EPL cover can provide an important financial backstop, Lea cautioned that insurance alone is not sufficient. “EPL insurance provides vital financial protection; however, it does not substitute expert legal advice, clear policies, and training or guidance to minimise both the likelihood and impact of employment claims.”
As the UK’s largest employer, the NHS highlights how a single policy interpretation applied across a large workforce can expose organisations to multiple, related claims. The Darlington ruling also sits alongside other recent tribunal decisions involving similar issues, some of which are now subject to appeal.
For brokers advising large employers, the takeaway is less about the specifics of any one ruling and more about the broader governance challenge: how to design, document and apply workplace policies that recognise competing legal protections while limiting liability exposure.
With guidance from the Equality and Human Rights Commission still pending, insurers and brokers face a period of uncertainty. As tribunals continue to test how equality law applies in complex workplace settings, the Darlington ruling underscores how employment practices liability is increasingly shaped by governance decisions, and how quickly those decisions can translate into costly, long-tail claims exposure.
