Breach of Duty in Public Authority Claims: The Expert’s Scope of Inquiry

The Clinical Framework: Distinguishing Institutional Failure from Individual Outcomes

In litigation involving allegations of abuse within public authority care settings—such as residential institutions, foster care, or educational environments—the role of the medico-legal expert is foundational to establishing the nexus between systemic failure and resultant psychological harm. The expert’s inquiry requires a granular analysis of whether specific omissions in safeguarding or institutional oversight contributed to the development of psychological injury or exacerbated existing developmental vulnerabilities.

Establishing a public authority abuse claim requires the claimant to demonstrate that a duty of care was owed, that it was breached, and that this breach caused actionable harm. Clinicians may assist by identifying markers of institutional neglect, such as failure to implement safeguarding policies or the disregard of documented distress. These indicators are evaluated alongside the claimant’s developmental history and the presence of adverse childhood experiences which may have been compounded by the institutional environment.

When assessing harm, experts often employ structured clinical histories and validated psychometric tools—such as the PCL-5 or the ITQ for complex post-traumatic stress disorder (CPTSD)—to inform the clinical opinion on mental health status under current diagnostic criteria.

Procedural Requirements for Expert Evidence

Under CPR Part 35, the expert’s overriding duty is to the court, which takes precedence over any obligation to the instructing party. This independence is essential when addressing complex questions regarding the attribution of mental injury in historic abuse claims. Experts must maintain a clear distinction between the factual account provided by the claimant and the clinical assessment of their present presentation. Where legal representatives require clarification on methodology or conclusions, they may use the written question procedure under CPR 35.6. This is distinct from the formal process of managing evidence for institutional inquiries, where the scope of inquiry may shift toward broader systemic patterns rather than the specific causation of an individual injury.

Navigating Causation and Apportionment

The medico-legal assessment must address the ‘but-for’ test of causation within a clinical framework. In scenarios involving cumulative harm—where multiple sources of trauma may be present—the expert should consider the extent to which the authority’s failure acted as a material contribution to the current psychological injury. The expert’s role is to provide a clear clinical opinion on how identified institutional lapses may have impacted the claimant’s developmental trajectory, self-organisation, and long-term psychological wellbeing. The principle of the ‘eggshell skull,’ as recognized in civil litigation, remains pertinent when the claimant possesses pre-existing vulnerabilities that render them more susceptible to severe harm from institutional failure.

Multi-Disciplinary Input and Document Review

Robust expert evidence may require a multi-disciplinary approach, combining the expertise of consultant psychiatrists, clinical psychologists, and occasionally pediatricians. A pediatric review may be appropriate to evaluate historical health records for objective indicators of neglect or undisclosed physical injury that were overlooked at the time. Psychiatric and psychological inputs are critical for assessing the long-term sequelae of chronic interpersonal trauma and the validity of reported symptoms, utilizing established measures to ensure the integrity of the clinical data presented.

Practical Considerations for Instructing Solicitors

• Records Management: Ensure that all relevant local authority files, case notes, and contemporaneous safeguarding records are provided. An expert’s opinion on breach of duty is often informed by documentation showing the authority’s knowledge regarding the claimant’s wellbeing.
• Instruction Clarity: Letters of instruction should allow the expert to maintain a trauma-informed methodology, ensuring that questions regarding causation do not inadvertently compromise the expert’s independence.
• CPR 35.8 and 35.12: Where a court directs the appointment of a single joint expert, instructions must comply with CPR 35.8. Where multiple experts are instructed by different parties, the court may direct a discussion under CPR 35.12 to narrow the issues; the resulting joint statement should reflect an objective exchange of clinical opinion.