Define the expert question
Set out the specific proposition, inference or evidence issue that requires independent opinion. A focused question helps determine whether expert evidence is needed and what scope is proportionate.
Knowledge centre
Clear guidance combined with experience for impactful expert reports.
Practical, plain-English notes for legal professionals preparing to instruct an independent drugs expert witness. These resources explain what to consider at the outset; they are not legal advice.
Guidance for instructing teams
Start with the issue that needs expert opinion.
Identify the material available
Provide a high-level description of the evidence, including drug analysis, statements, exhibit schedules, communications or financial material. Secure arrangements for any sensitive material should be agreed before it is shared.
Confirm the timetable
Include hearing dates, reporting deadlines and any decisions that depend on the report. Early notice supports realistic scoping and avoids unnecessary delay. We also promote our urgent 7-day service for critical cases
Evidence and report process
What a court-ready report should address.
Independence and scope
The report should remain within the expert’s agreed area of expertise, identify the material considered and distinguish evidence, assumptions and opinion.
Reasoned analysis
Opinions should explain the method and reasoning used, including any limitations that affect the weight which may be placed on the conclusion.
Clear communication
A well-structured report helps the instructing team understand the opinion, test the issues in dispute and present expert evidence clearly to the court.
Useful prompts
Before making an enquiry
What precise issue requires an independent drugs expert opinion?
Which material exists, and what can be shared safely at the initial stage?
What is the relevant procedural timetable or hearing date?
What outcome will the report need to inform: advice, plea, trial preparation or another decision?
Need to discuss the scope of a proposed instruction?
Send a concise outline of the issue, available material and timetable. The specialist team will review the enquiry directly.