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
  • 12 November 2025
  • Employment

GDPR: Who are data controllers and processors?

Controllers and processors have a different set of responsibilities, and have various responsibilities when dealing with data breaches.

Pub
  • 11 November 2025
  • Corporate and M&A

The Autumn Budget 2025: Key considerations for business buyers and sellers

Join Stuart Mullins and Nicky Goringe Larkin as they discuss some of the likely implications of the Autumn Budget 2025 for those looking to buy and sell businesses.

art
  • 11 November 2025
  • Corporate and M&A

Directors Duties: Honesty and Goodfaith 

In June the Court of Appeal found that a director had failed to comply with their statutory duty.

art
  • 11 November 2025
  • Litigation and dispute resolution

Renters’ Rights Act

We have been closely monitoring the progress of the Renter’s Rights Bill whilst it has been going through Parliament given the major reforms it proposed to the residential rental market in England.

art
  • 10 November 2025
  • Immigration

Immigration Reform Update – Key changes ahead

The UK Government has announced a new wave of immigration reforms, following the publication of the Immigration White Paper in May 2025. These measures represent one of the most significant updates to the immigration system in recent years.

art
  • 07 November 2025
  • Employment

Collective redundancies – a shake-up under the Employment Rights Bill (“the Bill”)

In today’s uncertain economic environment, it is rare to see a week go by without a major employer announcing redundancies, be that as a result a restructuring, a contracting business or a merger or acquisition