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Court of Appeal

Chesterton Global Ltd v Nurmohamed

[2017] EWCA Civ 979

Explains the public-interest requirement for a qualifying whistleblowing disclosure.

whistleblowingpublic interest

Legal principle

A disclosure can be in the public interest even where the worker also has a strong personal interest in the subject. The worker must reasonably believe disclosure is in the public interest; it need not ultimately be proved that it was.

What the court decided

The Court of Appeal declined to impose a rigid numerical test. The number and identity of those affected, the nature and seriousness of the wrongdoing and the interests involved may all be relevant.

The practical test

  1. 1

    Identify the wrongdoing the worker reasonably believed the information tended to show.

  2. 2

    Determine whether the worker actually believed disclosure was in the public interest.

  3. 3

    Assess objectively whether that belief was reasonable in all the circumstances.

How tribunals apply it

  • A disclosure affecting a section of the public, such as a group of employees, can qualify.
  • Mixed personal and public motives do not automatically prevent protection.
  • The worker's knowledge and circumstances at the time of disclosure matter.

Connected legislation

WorkDisputes tribunal data

These decisions are selected from topic classifications in our public Employment Tribunal dataset. A matching topic does not mean the decision applied this authority directly.

14 Sept 2026
Mixed outcome

Discrimination and Whistleblowing

Employer: Greenlight Recruitment Ltd

The claimant succeeded in his whistleblowing detriment claim but failed in his disability discrimination claim; remedy for the successful claim is to be determined at a later hearing.

Legal Issues (4)
  • Disability discrimination under sections 20 and 21 Equality Act 2010 – whether the respondent applied a provision
  • criterion or practice (PCP) that placed the claimant at a substantial disadvantage
  • whether the respondent had a duty to make reasonable adjustments as an employment service provider. Whistleblowing detriment under section 47B Employment Rights Act 1996 – whether the disclosure was a qualifying protected disclosure under section 43B (information tending to show a failure of health and safety protection, in the public interest)
  • whether the disclosure was a material cause of the detrimental treatment (cessation of shifts and termination)

Reference: 6017871/2024

14 Sept 2026
Mixed outcome

Discrimination, Whistleblowing and Breach of Contract

Employer: Sheffield City Council and Others

Wrongful dismissal claim struck out (lost); other claims remain ongoing, resulting in a split substantive outcome.

Legal Issues (4)
  • Amendment of claim
  • strike out and deposit orders for lack of reasonable prospects and non-compliance with orders
  • time limits
  • the test for unfair dismissal in whistleblowing cases

Reference: 1801462/2024

11 Sept 2026
Mixed outcome

Discrimination and Whistleblowing

Employer: University of Kent

The tribunal partially struck out some whistleblowing and victimisation claims for non-compliance, while leaving other claims pending.

Legal Issues (3)
  • Strike out for non-compliance with tribunal orders
  • deposit order
  • time limits

Reference: 6018012/2024

10 Sept 2026
Claim struck out

Whistleblowing

Employer: Sabrina Health Care Ltd

The claim was struck out because the claimant failed to attend the hearing and the tribunal could not proceed fairly in her absence.

Legal Issues (3)
  • Application of Rule 47 of the Employment Tribunal Procedure Rules 2024 for non-attendance
  • consideration of fairness and prejudice when a party fails to attend
  • inability to determine the claim without evidence from the claimant

Reference: 6015639/2025

9 Sept 2026
Claim dismissed

Discrimination and Whistleblowing

Employer: The Chief Constable of Gwent Police

The entire claim was dismissed because the whistleblowing claim lacked a discernible basis and the disability discrimination claims were out of time.

Legal Issues (2)
  • Whether the claimant had a discernible claim of whistleblowing detriment/dismissal
  • whether it was just and equitable to extend time for disability discrimination claims brought outside the statutory time limit

Reference: 6001777/2026

7 Sept 2026
Claim struck out

Discrimination, Whistleblowing and Harassment

Employer: Maximus UK Services Ltd and Ingeus UK Ltd

All claims were struck out, initially some for having no reasonable prospect of success and later the remaining claim for failure to comply with a tribunal order and not actively pursuing the case.

Legal Issues (4)
  • Striking out under Rule 38 of the Employment Tribunal Procedure Rules 2024 for no reasonable prospect of success and for failure to comply with a tribunal order
  • time limits for bringing discrimination claims
  • requirements for sufficient particularisation of claims
  • application of Cox v Adecco and Moustache v Chelsea and Westminster NHS Foundation Trust

Reference: 3306242/2024