Heyward v Plymouth Hospital NHS Trust

Factual and Procedural Background

This interlocutory appeal concerns a claim brought by the Plaintiff against the Defendant, an NHS Trust, alleging psychiatric injury caused by work-related stress in breach of the Defendant's duty of care. The Plaintiff was employed as a purchasing officer at a hospital and experienced stress after suspecting colleagues of fraud, leading to sick leave and subsequent whistleblowing. Following his return, the Plaintiff was subjected to intimidating behavior by a former colleague relocated nearby and experienced increased workload pressures due to staff reductions, culminating in a psychiatric breakdown and cessation of work.

The Plaintiff commenced proceedings in the High Court in November 2003. The Defendant admitted primary facts regarding the whistleblowing incident but denied that the Plaintiff was overworked or exposed to foreseeable psychiatric harm, asserting reasonable steps had been taken to manage workload risks.

Procedurally, a case management conference was held by telephone in March 2004, resulting in an order limiting each party to one consultant psychiatrist as expert evidence, rejecting the Plaintiff's application to call an occupational psychologist. An appeal against this order was made to a circuit judge, who upheld the restriction. The Plaintiff then sought permission for a second appeal to the current court, which was granted on the basis of an important principle relating to potential inequality of arms.

Legal Issues Presented

1. Whether the Plaintiff should be permitted to call expert evidence from both a consultant psychiatrist and an occupational psychologist in a work-related stress claim.
2. Whether restricting expert evidence to one consultant psychiatrist per party causes inequality of arms and prejudices the Plaintiff’s right to a fair trial.
3. The extent to which expert evidence is necessary to address issues of breach of statutory duties under health and safety directives and regulations in the context of psychiatric injury claims.

Arguments of the Parties

Appellant's Arguments

• The Plaintiff argued that while psychiatrists could address causation of psychiatric injury, an occupational psychologist was necessary to provide expert evidence on the employer's reasonable steps to prevent such injury, including risk assessments and compliance with health and safety directives.
• The Plaintiff contended that denying the opportunity to rely on such expert evidence would cause severe prejudice and inequality of arms, as the Defendant, a large organisation, would have greater access to expertise.
• It was submitted that expert guidance on when and how risk assessments should be conducted and what preventative measures should be implemented was essential for the court’s consideration.

Respondent's Arguments

• The Defendant maintained that one consultant psychiatrist per side was sufficient to address all relevant clinical and causation issues.
• The Defendant argued that additional expert evidence from an occupational psychologist was unnecessary and would be disproportionate given the amount at stake.
• The Defendant asserted that any organisational or regulatory issues could be adequately addressed by the existing psychiatric experts or by witnesses from human resources without need for further expert evidence.

Table of Precedents Cited

Court's Reasoning and Analysis

The court analysed the procedural history and the nature of the claim, recognising that the Plaintiff was vulnerable to stress and that the Defendant was aware of this vulnerability. The experts identified two possible factual scenarios: either the Plaintiff suffered psychiatric injury caused by work overload or the Plaintiff's condition was due to personal mental fragility unrelated to the work burden.

The court noted that these were primarily factual issues for determination at trial. It considered the potential need for expert evidence from an occupational psychologist or physician only if the Defendant introduced quasi-expert evidence requiring rebuttal. The court found no present basis to allow additional expert evidence, emphasizing that the existing psychiatric experts were competent to opine on the employer's duty of care and the management of the Plaintiff's return to work.

The court also reflected on the procedural shortcomings, including the failure to exchange witness statements and the stay of proceedings, which had complicated the assessment of the necessity of additional expert evidence. Nevertheless, the court concluded that the case management decisions limiting expert evidence were sensible, proportionate, and adequate to address the issues likely to arise.

Regarding the Plaintiff's fall-back case based on breaches of health and safety directives and statutory regulations, the court considered it an overextension of the claim in this relatively straightforward stress at work case and saw no justification for expanding expert evidence on those grounds.

Holding and Implications

The court DISMISSED the Plaintiff's appeal against the order limiting expert evidence to one consultant psychiatrist per party.

The decision confirms that in work-related stress claims, the court may limit expert evidence to psychiatrists where the issues are primarily factual and clinical, reserving the possibility of permitting additional expert evidence only if unforeseen complexities arise. This approach balances the need for expert assistance with proportionality and procedural efficiency. The ruling has the direct effect of maintaining the existing case management order and does not establish new precedent beyond the individual circumstances of this case.