Hallett v Derby Hospitals NHS Foundation Trust

Nationally agreed contractual terms governing junior doctors’ pay and working conditions must be interpreted uniformly across NHS Trusts. Local monitoring arrangements concern the practical collection of data and do not permit a Trust to determine the substantive tests for compliance or pay banding. Natural-break compliance must be assessed using actual recorded data for duty periods worked, subject to an assumption of compliance where a doctor worked but failed to return data. The 75% duty-return threshold likewise concerns duty periods actually worked, not expected or artificially created rota data. A correctly assessed Band 3 post entitles all doctors working on that rota to the higher band until reassessment. A single valid non-compliant monitoring round may trigger backdated pay.

The appellant, a junior doctor employed by the respondent Trust, sought declarations concerning her entitlement to a Band 3 pay supplement for a four-month General Surgery F1 rota. The dispute concerned the incorporation and interpretation of national and local monitoring documents, the calculation of natural-break compliance, and the 75% duty-return threshold required for a valid monitoring round.

Simler J held that the Trust’s local monitoring guide and FAQs formed part of the contract, that the national documents did not, and that the Trust’s use of expected or substituted rota data was contractually permissible and rational. MR1 was treated as valid and compliant, while MR2 was treated as invalid. The central issues on appeal were the proper contractual methodology and the effect of the mistaken inclusion of a doctor working a different pattern.

Disposition and contractual framework

The Court of Appeal, comprising Bean LJ, Simon LJ and Nicola Davies LJ, unanimously allowed the appeal. It set aside the order below, save for the declaration concerning backdated pay under paragraph 21(p) of the TCS, and made further declarations giving effect to its conclusions.

1. The court noted the statutory background. Paragraph 10(1) of Schedule 5 to the National Health Service Act 1977 empowered the Secretary of State to regulate doctors’ remuneration and conditions. Regulations 2 and 3 of the National Health Service (Remuneration and Conditions of Service) Regulations 1991 supported incorporation of agreed and approved remuneration and conditions into the applicable employment arrangements.
2. The nationally agreed Terms and Conditions of Service governed the meaning of the contractual pay and working requirements uniformly. The Trust’s local Hours Monitoring Guide and FAQs were not contractual terms. Clause 6(a) required robust local monitoring arrangements, but those arrangements concerned practical and logistical data collection, not local interpretation of the substantive compliance or pay-band tests. The national documents, although not incorporated, could assist interpretation where they did not contradict the TCS.
3. Natural-break compliance under paragraph 22a(vii), read with the relevant circulars, had to be assessed by actual recorded data for duty periods worked during the monitoring round. Where a doctor worked but failed to submit a return, the Trust could assume that the required breaks were taken. It could not treat a duty period that was never worked because of leave, absence, transfer, departure or an unfilled slot as compliant.
4. The 75% duty-return rate required for validity had to be calculated by reference to returns covering at least 75% of duty periods actually worked, rather than expected or artificially produced rota data. Pay-band assessment was by reference to the group of doctors on the same rota. A single valid monitoring round showing non-compliance could establish Band 3 and backdated pay.
5. MR1 was valid and, on the correct methodology, would have shown non-compliance. MR2 was flawed by the inclusion of Dr Mohammed, whose working pattern differed. Given the finding that the Trust acted in good faith, it was entitled to treat that exercise as invalid and remonitor rather than recalculate it retrospectively. The declarations established entitlement to Band 3 for the appellant and represented class.

• Court of Appeal (Civil Division) [2019] EWCA Civ 1394, 30 July 2019: unanimously allowed the appeal, set aside the order below subject to preserving the declaration on paragraph 21(p), and made further declarations.
• High Court of Justice, Queen’s Bench Division: Simler J held that the Trust’s local monitoring documents were incorporated, that the Trust’s methodology was rational, that MR1 was valid and compliant, and that MR2 was invalid and required remonitoring.