← Back to case studies
Case law
Kilraine v London Borough of Wandsworth

A complaint can count as whistleblowing even if it is an allegation, as long as it is specific enough.

The ruling

“An allegation can still be a protected disclosure, so long as it carries enough specific factual detail.”

An allegation can still be a protected disclosure, so long as it carries enough specific factual detail.

  • Anchor every concern in specifics: the events, the dates, and who was affected.
  • Name the duty breached or the risk created, rather than complaining in general terms.
  • If a first complaint was vague, you can follow up with a clearer, more detailed one.
Read the full case

The situation

The worker was employed by a London local authority and, after her dismissal, brought a whistleblowing claim. She said she had made several protected disclosures during her employment and had been treated badly and then dismissed because of them. Those disclosures included two things. One was a letter to a senior children's services manager, saying the council was failing its legal duties towards her over bullying and harassment and that she had faced repeated inappropriate behaviour. The other was an email to HR, complaining that her line manager had not backed her after she raised a safeguarding issue. The tribunal found these were allegations that did not contain enough information to qualify, and she appealed.

What the court found

The Court of Appeal dismissed her appeal, but corrected an important point of principle along the way. Information and allegation are not divided by any rigid line, and a statement need not be one or the other. A single statement can be both at once. What the tribunal should ask is whether the statement has sufficient factual content and specificity to be capable of tending to show one of the relevant kinds of wrongdoing, such as a breach of a legal obligation or a health and safety risk. On the facts, her complaints failed because they were too general, not because they happened to be phrased as allegations.

Full citation

Kilraine v London Borough of Wandsworth | [2018] EWCA Civ 1436; [2018] IRLR 846 | Court of Appeal | 21 June 2018

Last reviewed 5 July 2026