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ARTICLE · 30 SEPTEMBER 2026

Workplace Investigations: Lessons From A Recent Case

Mishcon de Reya LLP
Mishcon de Reya LLP
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Mishcon de Reya LLP

Mishcon de Reya LLP

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The Employment Appeal Tribunal's decision in Clifton Diocese v Parker reveals a series of serious procedural failings in a workplace investigation that led to an unfair dismissal. The case examines how an external investigator's flawed approach—from failing to disclose allegations in advance to conducting the process in a dismissive manner—can expose employers to significant legal liability. With the compensatory cap for unfair dismissal claims being removed in 2027, this judgment serves as a cr

United KingdomEmployment and HR

In brief 

  • The Employment Appeal Tribunal's (EAT) recent decision in Clifton Diocese v Parker is a cautionary tale of what can go wrong in a workplace investigation, recording a series of serious procedural failings by the appointed investigator.
  • Notably, the employer didn't try to appeal the employment tribunal's decision that these failings made the dismissal unfair.
  • The EAT allowed the employer's appeal on the discrimination and harassment findings, which have been remitted to the same employment tribunal for redetermination. As the EAT emphasised, unfair treatment is not, by itself, evidence of discrimination — but the procedural failings in this case speak for themselves.

What happened in this case?

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