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Dunn v J D Wetherspoon plc

A final written warning issued during a mental health crisis is not automatically fair.

The ruling

Final written warning and subsequent dismissal found unfair”

If you were disciplined or dismissed following an absence connected to a mental health crisis, your employer may have been required to consider whether a health condition was relevant before taking action, even if you had never been formally diagnosed.

  • Under section 15 of the Equality Act, unfavourable treatment connected to a disability can be unlawful even where your employer did not know you were disabled, if the signs were visible in their own records.
  • A previous absence coded as stress, a GP fit note, or a recently adjusted working arrangement are the kinds of things a tribunal will ask whether your employer considered before proceeding with a disciplinary.
  • If you believe a health condition was not properly taken into account before a disciplinary decision was made, take advice. The fact that a process was followed does not mean it was a fair one.
Read the full case

The situation

A duty manager at a pub had a breakdown in July 2023 and left work without making contact. The company treated the absence as AWOL and wrote to him while he was still in crisis, inviting him to a disciplinary hearing for gross misconduct. A final written warning was issued. His appeal failed.

What was already in the company's own records at that point: a previous absence documented as stress and anxiety that was possibly undiagnosed, a GP fit note recommending a phased return, and a part-time arrangement agreed just weeks before he disappeared.

What the tribunal found

The warning was unlawful under section 15 of the Equality Act 2010, which prohibits unfavourable treatment arising from something connected to a disability. The tribunal's finding was not that the absence was acceptable, or that the company was wrong to raise the matter. It was that the company already had the information it needed to ask a different question, and it did not ask it. A separate harassment finding was also made against the line manager for comments made in September 2023.

Full citation

Dunn v J D Wetherspoon plc. Case 6000357/2024. Sheffield Employment Tribunal. May 2025.

Last reviewed 31 July 2026