How to Write a Medico-Legal Report

The opinion took two hours to write. The records took two days to read. The wrong ratio decides how many cases your panel files each month. Most of the effort in report writing goes into the part the reader never sees: building a reliable history from the bundle before a single line of opinion gets drafted.

This guide sets out how to write a medico-legal report, section by section, to a standard reviewers accept. For the wider picture, read our guide for medico-legal agencies and the pillar on what a medico-legal report is.

Start with the duty to the court

Before structure, fix the mindset. CPR Part 35 sets one principle above the rest: the expert’s duty runs to the court, and overrides any obligation to the party who instructs or pays. Every section serves the duty. A report written to help the instructing side win fails. Write the report you would defend under cross-examination from either party.

The structure, section by section

Practice Direction 35 sets the required content. A clear report writes the sections in this order.

1. Instructions and the questions to answer

State who instructed you, the specific questions, and your qualifications. Set out the material facts and instructions you relied on, and list the documents and any literature considered. This frames the scope of the opinion for the court, and covers what Practice Direction 35 requires of the report’s opening.

2. The claimant’s account

Record the incident and the symptoms in the claimant’s own words, separate from your findings. Keep your assessment for the opinion. Mixing the two early weakens both.

3. The medical history

This section takes the time and decides the case. Build a dated chronology from the records, each entry tied to a source page. Include relevant pre-existing conditions. The defendant’s expert looks for them, and a history addressing them holds. A loose summary with no dates and no sources invites a Part 35 question on the first read.

4. Examination findings

Where you examined the claimant, record your findings. Note who carried out any test or measurement, and whether the work happened under your supervision, as the Practice Direction requires.

5. The opinion

This section is your work product. Address diagnosis, causation, the effect of the injury, treatment, and prognosis. Link each conclusion to the history and the findings. In clinical negligence, keep breach of duty and causation apart. State your reasoning, not only your conclusion, so the court follows your route to the view.

6. Range of opinion

Where reasonable experts differ, summarise the range and give reasons for your own view. Leaving this out is a common, avoidable fault. Naming a contrary view and explaining why you reject it strengthens the opinion.

7. Declarations and statement of truth

Close with a summary of your conclusions, the statement of compliance with your duty to the court, and the statement of truth in the required wording.

Write the history before the opinion

Order matters. An expert drafting the opinion while still reading the bundle rewrites the draft as new entries surface. Build the full chronology first. Once you hold the complete history, the opinion follows quickly, because the sequence does most of the reasoning. A medical chronology is the foundation the opinion stands on.

The faults reviewers find

The other side reads your report for weakness. The faults they find most often:

• A missed entry. A relevant record you never addressed, usually buried deep in a long bundle.
• An unsourced fact. A clinical claim with no page reference, impossible to verify.
• An overstated prognosis. A conclusion the records do not support.
• Advocacy. Language arguing the case rather than serving the court.
• No range of opinion. A single view presented as the only one. The first two lead the list, and both come from the record review, not the writing. An expert who reads the full history and sources every fact removes the two faults behind most challenges.

A checklist before you sign

• Have you addressed every relevant record, including pre-existing conditions?
• Does every clinical fact carry a source you point to?
• Is the opinion reasoned, not only stated?
• Have you set out any range of opinion?
• Have you stated your qualifications and summarised your conclusions?
• Are the duty statement and statement of truth present and correct?
• Would the report read the same if the other side had instructed you?

Cut the preparation, keep the rigour

Good report writing is not faster writing. Faster, more reliable preparation lets the expert spend time on the opinion rather than the reading.

Health Narrator builds a structured, source-referenced chronology from the full bundle, in any format, shaped to the expert’s specialty. The history section starts from a complete, dated, sourced timeline rather than a blank page. Every finding links to the source line, so each fact carries a reference the expert defends. Users report up to 70 percent time saved on record review, with a structured first pass in minutes and greater confidence in report quality on 90 percent of reports. The rigour stays with the expert. The reading goes to the platform.

See what Health Narrator does for your panel. Book a demo.