The ultimate in witness preparation

The market-leading provider of witness preparation for
high-stakes litigation.

Reducing risk by transforming witness performance when it matters most.

Why consider witness preparation?

Giving evidence is unfamiliar and stressful - even highly experienced professionals can struggle under the pressure of sustained cross-examination.

Witnesses under performing can present significant risk to a case.

We transform witness performance through:


Always Real Play, Not Role Play

Our cross-examination practice is as close as possible to the real thing, based on actual events not artificial role-plays, and bespoke to each witness.


Multi-Disciplinary Insights

Barristers are supported by communications experts and performance psychologists who, as specialists inbehavioural change, offer integrated support and focused feedback for every witness.


Unmatched Barrister Expertise

Every session is led by a KC or Senior Junior barrister, many of whom also sit as judges,arbitrators and mediators bringing lived insight into effective witness performance.

What people say

Some of our clients

Quinn Emanuel
Mishcon De Reya
Freshfields
Baker McKenzie
Clifford Chance
Herbert Smith Freehills Kramer
A & O Shearman
CMS
Slaughter and May
Norton Rose Fulbright
Payne Hicks Beach

In a league of their own.

The only #1 ranked witness preparation company by Chambers & Partners for the past 5 years (2025).

Our latest news and insights

Trainer Perspectives

Shutting Out the Noise: Survival Lessons from Cross-Examination

Insights

Anyone Can Be a Good Witness

Insights

The Cost of Unprepared Witnesses

Trainer Perspectives

Interview With Trainer, Jeremy Brier KC: It’s a Marathon, Not a Sprint

Trainer Perspectives

Interview With Performance Psychologist, Dr Jenny Denyer

Frequently
Asked Questions

What is witness preparation and how does it help my case?

Witness preparation reduces litigation risk through realistic, science-based preparation that transforms witness performance. We provide witnesses with the skills they need to perform effectively under the pressure of cross-examination as well as helping them to understand the process of giving evidence .

Is witness preparation allowed?

Yes. Whilst Preparing witnesses on the facts of their case is not allowed, our training provides necessary familiarisation and builds the skills witnesses need to perform at their best. We undertake cross-examination exercises not using the facts of the case, but based on personal information that the witnesses have provided themselves.

What makes Assurety different from other witness preparation providers?

Assurety’s approach combines three elements that set our training apart.

Real play, not role play
Our cross-examination practice is as close as possible to the real thing, based on actual events not artificial role-plays, and bespoke to each witness

Unmatched barrister expertise
Every session is led by a leading KC or senior barrister with extensive cross-examination experience.

Multi-disciplinary insight
Barristers work alongside communications specialists and performance psychologists who are specialists in behavioural change.

Who delivers the training sessions?

Every session is delivered by a leading barrister, either a King’s Counsel or senior junior barrister with extensive courtroom experience.

Many also sit as judges, arbitrators or mediators, bringing real insight into what effective witness performance looks like. We also always have a Communications Expert or Performance Psychologist in the session, ensuring we have a behavioural change expert alongside our legal expertise.

How realistic are the cross-examination sessions?

Our training is designed to replicate the pressure of cross-examination as closely as possible without touching on the facts of the case. By using personal material, provided by the witnesses themselves, our cross-examination practice replicates the emotion and pressure of the real thing. Our leading barristers construct bespoke forensic questioning sessions  and we use with video playback and detailed feedback to analyse performance, identify risks and build new habits.

“No other firm provides the training as Assurety does. It is worth every penny”

Chambers and Partners

Talk to us about preparing your witnesses.

Every case is different, and the stakes are often high. We’ll help you determine the right level of preparation to support your witnesses and reduce performance risk when it matters most.