Are you prepared for the complexity of a high-value personal injury case?

Medical experts are often instructed to give evidence in high value personal injury cases. Many of these cases involve serious injuries and complex issues.

Whilst subject matter expertise is essential, experts must also ensure that they have carried out sufficient case preparation.

This involves reviewing medical records and medical documentation regarding the impact and severity of the injury and the claimant's recovery process. It also involves knowledge of the legal principles establishing liability, negligence, causation and compensation in a personal injury case.

In this practical guide for experts preparing to give evidence in high value personal injury cases, we will explore:

• What defines a high value personal injury case.
• Why high value personal injury claims are more complex.
• The role of the expert witness.
• The different stages of a personal injury claim, from assessment through to settlement.
• The risks associated with a lack of preparation in a case.

What is considered a high value claim?

High value cases

A high value personal injury claim is generally defined by the severity of the injury and the long-term impact an accident can have on a claimant's life. 

Typically, these claims result in substantial compensations. This is because they establish liability for severe physical trauma (for example, catastrophic injuries, spinal cord injuries and brain injuries) psychological damage, and significant, ongoing financial losses. 

Damages in a high value personal injury case

High-value cases are categorised by two primary types of damages: general damages and special damages. 

General damages cover the physical and psychological impact of the injuries.

Special damages are the quantifiable, "out-of-pocket" costs resulting directly from the accident, including: 

• Future loss of income, wage loss or future earning capacity. 
• Care and assistance costs. 
• Medical expenses. 

Why high value personal injury matters are more complex

High value claims are more complex for several distinct reasons:

• Long-term prognosis of injury. Instead of a simple medical report, a high value personal injury case will require more (and often specialist) medical evidence in order to establish the long-term or permanent impact of severe injuries.
• Multi-disciplinary expert opinion. A high value personal injury case will require evidence from experts from several specialisms and therefore also greater involvement from a personal injury solicitor and wider legal team.
• Calculating future losses. Quantifying special damages involves calculating future costs such as lifetime care regimes, lifelong loss of earnings and specialist home adaptations.
• Longer case timelines.  The extent and complexity of evidence required to establish negligence, and liability will increase the length of proceedings. This leads to higher value cases.

The role of the expert witness in complex personal injury cases

Expert witnesses provide independent, specialist knowledge that assist judges to understand technical facts, determine liability and accurately value compensation. 

The role of the expert is multifaced and can be broken down into several key factors. 

Establishing liability and causation

Experts will analyse the circumstances of the incident (for example, an accident at work) to determine exactly how it happened. 

They will also provide scientific or technical evidence to establish the necessary chain of causation. 

Case valuation: determining economic damages and settlement value under insurance coverage

Economic and financial experts evaluate lost earnings, loss of future earning capacity, pension impacts, and the costs of ongoing medical care.

Their reports allow solicitors and the court to accurately calculate the financial value of the claim. 

Their evidence is also used to determine the settlement value - the amount paid out under insurance. 

Diagnosis, prognosis and care needs

• Medical evaluation: Medico-legal experts review medical records, conduct examinations, and interpret diagnostic tests to provide an evidence-based diagnosis of the claimant's current condition.
• Future Prognosis: They will also estimate the long-term impacts of the injuries, determining future treatment needs, life expectancy, and any permanent disabilities.
• Care Quantification: Care experts or occupational therapists detail the specific day-to-day assistance the claimant will require, laying the groundwork for financial compensation.

Overriding duty to the court and not the law firm

An expert owes a primary duty to the court and not the instructing party. This means that they must remain independent and impartial at all times. 

Experts must also understand and demonstrate compliance with all the rules and responsibilities under Part 35 of the Civil Procedure Rules (CPR 35). 

Key stages of a high-value personal injury claim

The key stages of a high-value personal injury claim are:

• Initial assessment. The legal team will consider all the factors of the accident/incident to establish if another party is at fault and if there is a claim.
• Evidence gathering. The law firm will investigate the accident/incident and compile a letter of claim. The other party's insurance company must also investigate and respond within strict timescales.
• Medical assessment. Experts will be instructed by both sides to produce reports on diagnosis, treatment and long-term prognosis. The court may direct experts to produce a joint statement. This will involve experts meeting to discuss and potentially narrow the issues in dispute.
• Valuing and negotiating. Once the medical reports are complete, the legal team will calculate compensation (general damages and special damages) and enter into negotiation with the insurer to reach a settlement.
• Settlement or court action. The vast majority of personal injury cases are resolved out of court through negotiation. However, if liability is disputed or a fair settlement cannot be agreed upon, formal court proceedings will continue.

Evidence standards and medico-legal reporting

In order to create a court and CPR 35 compliant medico-legal report, experts must:

• Consider all material facts - including those that detract from their instructing party's case.
• Ensure that their opinions are grounded in evidence.
• Ensure that any assumptions, material facts, and expert opinions are clearly separated and identifiable.
• Declare the qualifications or experience backing their opinion, explicitly detail the methodology or tests used, and acknowledge any limitations in their findings.

Common challenges and misconceptions

Experts who fall short of the standard required by the court will usually do so for one or more of the following reasons:

• Non-compliance with their duties and responsibilities under CPR 35. 
• A lack of knowledge or understanding of the courtroom/litigation procedure. 
• Poor report writing and communication skills. 
• Ineffective performance when giving evidence or under cross-examination. 

Skills and preparation required to succeed

The Academy of Medical Royal Colleges’ (AoMRC) Guidance on Acting as an Expert Witness, states that medical and healthcare expert witnesses should undertake specific training for being an expert witness and the expectations and responsibilities of the role. For example, training on:

• Law and procedure.
• Report Writing.
• Courtroom skills.

This will ensure they have the knowledge, skills and experience to perform their role effectively.

The AoMRC Guidance also recommends that expert witness training should be kept updated and form part of the expert’s CPD. This reinforces best practice and helps expert witnesses stay compliant with evolving legal standards.

The risks of being unprepared

The consequences for experts breaching core legal duties and procedural rules can be significant. Depending on severity of the breach, they include:

• Criticism in court and evidence being rejected.
• Complaints to professional regulators and subsequent disciplinary action.
• Legal sanctions such as liability for damages.

Expert witness training is not just essential for professional development, but it also safeguards against reputational risk and cost consequences.

How we can help

Sufficient preparation as an expert witness is not limited to expertise. It requires other factors such as strong ethics, excellent communication skills and a commitment to continuous learning.

Bond Solon provides training covering all the core skills and knowledge expert witnesses require to fulfil their role compliantly and effectively. This includes our Personal Injury Essentials course, which is led by two senior personal injury lawyers. We also offer industry gold standard certificates that are assessed and awarded by leading law schools. These certificates enable holders to evidence their expert witness competency and promote their practice. Find out more here.