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
  • 19 March 2026
  • Privacy and Data Protection

WhatsApp in the Workplace

This article explores the potential risks of using WhatsApp for workplace communications, the implications for GDPR compliance and under UK legislation, and provides practical tips for employers to mitigate these risks.

art
  • 16 March 2026
  • Employment

Trade Union Law Changes from April 2026

April brings the next tranche of reforms under the Employment Rights Act 2025 including changes to the statutory recognition scheme making it easier for trade unions to be recognised in the workplace.

Pub
  • 16 March 2026
  • Corporate and M&A

Shareholder Disputes: Managing Shareholder Buyouts and Exits – Episode 3

Join Stuart Mullins and Nicky Goringe Larkin for the third and final episode of our Shareholder Disputes series, where we move from prevention to resolution—exploring what happens when a founder’s exit becomes unavoidable.

art
  • 13 March 2026
  • Employment

When Immigration compliance becomes discrimination: The UK’s uncomfortable workplace balance

UK employers today operate under powerful, and some may say conflicting, legal pressures. On one hand, they must prevent illegal working under UK immigration laws.

art
  • 09 March 2026
  • Commercial Real Estate

Commercial Rent Deposits – A brief overview

A rent deposit is money provided by a tenant to its landlord as security for payment of the rent and performance of the tenant’s covenants contained in the lease.

art
  • 03 March 2026
  • Employment

International Women’s Day 2026 – Supporting equality and inclusion for a better, happier workforce

This year, International Women’s Day is inviting everyone to think differently about equality and how it can benefit everyone. The theme this year is ‘Give to Gain’.