Search

How can we help?

Icon

Paranoid delusions are not a disability

In the recent case of Sullivan v Bury Street Capital Ltd, the EAT had to decide whether paranoid delusions could amount to a disability.

On the facts, the tribunal decided they could not. Key to their decision was the finding that the effects of paranoid delusions experienced by the Claimant were not long term, even though they occurred in 2013 and subsequently reoccurred in 2017. Although the Claimant was dismissed in 2017, the tribunal relied on facts established in 2013, primarily that the effects of his delusions only lasted 4 months.

The tribunal concluded that they did not last longer than 12 months and/or were not likely to return. The Claimant appealed, but the EAT rejected the appeal agreeing that the tribunal was entitled to rely on the facts from 2013.

EAT had to decide whether paranoid delusions could amount to a disability.

In any event the EAT held that even if the effects caused by the paranoid delusions were a disability, the employer would not have had the requisite knowledge of the effects experienced by the Claimant. An employee who worked closely with the Claimant gave evidence confirming he did not notice any of the effects when they worked together.

This case is very fact specific. It does not flow with the rest of the case law on long term effect. However, it does provide useful clarification on disability discrimination and, in particular, knowledge.

Except for indirect disability, knowledge is required for disability claims, and employers should seek advice from the outset to reduce the risk of claims.

Disclaimer
This information is for guidance purposes only and should not be regarded as a substitute for taking legal advice. Please refer to the full General Notices on our website.

Author profile

About this article

Read, listen and watch our latest insights

art
  • 24 June 2026
  • Employment

What are employer’s obligations during a heatwave?

During the summer, employers can come across employee issues relating to the heat and hot weather. How can employers handle hot weather and what are employer obligations during a heatwave?

art
  • 23 June 2026
  • Employment

Pride month and employment law: Ensuring compliance with LGBTQ+ protections

With each Pride month, companies unveil rainbow logos and send office wide emails of solidarity. These gestures are valuable, giving visible demonstrations of support, but only really make a difference if those companies are able to truly say that their policies and practices are inclusive and legally compliant.

art
  • 22 June 2026
  • Commercial Real Estate

Do you need an EPC for lease renewals? Key insights for commercial property owners

When is an EPC required for leases? The non-domestic EPC guidance makes it clear that an EPC is not required on renewal. The Ministry for Housing, Communities and Local Government’s (MHCLG’s) “A guide to energy performance certificates for the construction, sale and let of non-dwellings: Improving the energy efficiency of our buildings”

Pub
  • 18 June 2026
  • Employment

Employment Rights Act 2025: Key Changes for Employers

Join Katie Glendinning and Lucy White for an on demand webinar as they break down the key changes introduced by the Employment Rights Act 2025, offering clear insights into what these reforms mean in practice for employers and HR professionals.

art
  • 18 June 2026
  • Corporate and M&A

Business sales and NDAs: Creating a safe space to open up your business

You have accepted an offer to sell your business, but taking an agreement in principle through to completion may involve the need to divulge your company’s private information – perhaps deep secrets which have given your business its competitive edge.  

art
  • 16 June 2026
  • Employment

Shaping the Future of Work: Insights from the 114th ILO International Labour Conference

Having recently returned from the 114th Session of the International Labour Conference in Geneva, I have been reflecting on the work of the International Labour Organisation (ILO) and the important role it plays in global standard setting, as well as promoting social and economic inclusivity.