Search

How can we help?

Icon

Whistleblowing detriment claims

Agency workers can bring whistleblowing detriment claims against end users provided the end user has substantially determined the terms of the worker’s engagement.

In the recent case of McTigue v University Hospital Bristol NHS Foundation Trust Ms McTigue was an agency worker employed by Tascor Medical Services Ltd (Tascor) and assigned to work for University Hospital Bristol NHS Foundation Trust (the Trust).  She brought whistleblowing detriment claims against the Trust following her dismissal.

To be entitled to bring such a claim, Ms McTigue needed to show that she was a ‘worker’ and that the Trust was her ‘employer’.  For this type of claim, the law allows an extended definition of worker which includes individuals who have the terms of their engagement substantially determined by the person for whom they work, a third person or by both of them.   In such a situation, the law states that the ‘employer’ can be the person who substantially determines the terms of engagement.

The employment tribunal identified the terms of Ms McTigue’s engagement and set out who, it considered, had determined each of these.  It concluded that because the majority of terms had been determined by the agency, it could not be said that the Trust had ‘substantially determined’ the terms of engagement.

In overturning this decision, the EAT made clear that the law allows for two parties to jointly determine the worker’s terms.  It said that the “tribunal erroneously focused on who determined the substantial terms when it should have been focused on whether the [Trust] and Tascor both substantially determined the terms on which the Claimant was engaged to do the work”.  The case was remitted to a new tribunal to determine if, on the facts, this test was met.

Agency workers can bring whistleblowing detriment claims against end users provided the end user has substantially determined the terms of the worker’s engagement.

It will often be the case that end users determine some of the terms of a worker’s engagement (which can be in writing, oral or implied) and, thus, end users need to be mindful that they may have liability for detrimental acts related to whistleblowing.  Further, the EAT made clear that the fact that the agency worker may have another route open to them (i.e. to bring a claim against the agency) will not preclude them from bringing a claim against the end user.  It’s important to, therefore, ensure staff are adequately trained on the standards expected of them.

Our team of whistleblowing lawyers are always on hand to assist you with compliance and Forbury People are trained HR consultants who can also assist with training and the implementation of whistleblowing policies and procedures.

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

Monica Atwal

Managing Partner

View profile

+44 118 960 4605

About this article

Read, listen and watch our latest insights

art
  • 27 February 2026
  • Litigation and dispute resolution

How (not!) to serve a winding up petition on a company using a default address

This case concerned an appeal by DG Resources Ltd (“DG”) on the basis that a winding up petition brought by HMRC (the “Petition”) was invalidly served.

art
  • 25 February 2026
  • Immigration

Dual Nationals Take Note: UK Travel Rules Changed on 25 February 2026

From 25 February 2026, important procedural changes came into force affecting how dual citizens travel to the United Kingdom.

Pub
  • 23 February 2026
  • Corporate and M&A

Shareholder Disputes: Planning for the Worst – Episode 2

Join Stuart Mullins and Nicky Goringe Larkin for the second episode of our podcast series on shareholder disputes, where they explore what happens when business partners disagree.

art
  • 20 February 2026
  • Corporate and M&A

EMI Schemes – following the 2025 Autumn Statement

In an economic landscape where attracting, retaining and incentivising key employees is key to commercial success.

art
  • 19 February 2026

Clarkslegal’s international legal alliance TAGLaw achieves top “Elite” – Band 1 ranking by Chambers & Partners 2026

Clarkslegal’s international legal alliance, TAGLaw®, has again been recognised by Chambers & Partners as “Elite – Band 1” for 2026—the highest ranking awarded to legal networks and alliances.

art
  • 17 February 2026
  • Employment

The Employment Rights Act – A shift in power: why employers will face greater pressure from industrial action and union relations in 2026

Substantial union-related changes under the Employment Rights Act 2025 will take effect on 18 February 2026, ushering in significant shifts in the legal landscape for industrial action in the UK.