• Brilliant, it would be vitally helpful to someone who was giving evidence as a witness for the first time.
    John Lees, international careers adviser
  • This is a truly excellent guide for the prospective witness who is approached to give evidence in any type of matter in the United Kingdom. It is clear, concise and very user- friendly. A ‘must’ read.
    Stephen Harvey QC, Head of Chambers, Gray’s Inn Square, London
  • Awesome. A useful little app.
    Anthony Kordar, Attorney-at-law, Florida
  • Get this app and save your ass!
    Michael Wong
  • Your app is very easy to use, easy to understand and provides clear and concise sections which read fluently and with a good combination of fact and advice. I think it’s a brilliant aid for anyone called as witness.
    Peter Willmott, investment banker
  • A very useful tool, very detailed and thorough.
    Joanne Andrew, Partner Mellor Olsson, Australia.
  • He is one of the best experts I know in any discipline.
    Catastrophic personal injury lawyer

Great information at your fingertips

Pocket Witness is the world’s first mobile phone app specifically for the United Kingdom and United States jurisdictions that gives people who may be called to give evidence in court a clear understanding of what to expect.

Created and developed by one of the UK’s most distinguished and reputable expert witnesses

Developed by Trevor Gilbert, OBE, six times winner of the prestigious UK Personal Injury Awards (2012, 2013, 2015, 2016, 2017 and 2018) for client care initiative, shares his personal experience of 30 years of giving evidence so that you can be completely prepared to deal with the ordeal of cross-examination.

Buy with confidence

Trevor has delivered high level witness preparation training to the private and public sectors and his programmes receive never less than a 97% positive feedback.
You can be assured of the very highest quality of preparation has gone into the content of this unique app

Do's and Don'ts

The app explains the courts and their layouts, who’s who, gives tips on presentation and preparation, keeping calm and the courtroom do’s & don’ts. The most important feature is an extensive chapter on cross-examination that reveals many of the ‘tricks’ counsel uses to discredit witnesses or make them look unreliable, and will give you a greater understanding of the type of questions you might be asked and, best of all, how to deal with them.

Top lawyers recommend Trevor:

“What was more important was the clarity with which Trevor presented his evidence-in-chief and the calm, professional and competent manner in which he maintained his opinion under cross-examination - a stunning performance". Advocate Andrew Ayres, Trinity Chambers, Guernsey, Channel Islands. "Trevor Gilbert is an independent witness of the highest calibre, unmoveable when his opinion has been properly formed, persuadable when logic dictates, well researched and impressive Andrew Ritchie QC, Head of Chambers, 9 Gough Square, London. "Mr Gilbert demonstrated complete professional competence and his experience was nothing short of excellent... his evidence was delivered in textbook fashion... he excelled when it came to advising the client impartially and clearly and was the consummate professional”. Defendant Lawyer

What a top judge said:

Lord Bannantyne, Court of Sessions, Edinburgh, Scotland, said in his judgement in the case of McGlone v Greater Glasgow Health Board; “I have taken some time to deal with these criticisms (of Trevor by the lawyer for the Pursuer (Claimant/Plaintiff) as a result of rigorous cross-examination) in that it was clear that there was, on behalf of the pursuer, a root and branch attack on this witness. Having looked at each of the criticisms I am not persuaded they are well founded.

Some (confidential) feedback on our Witness Box training courses

"I would like to let you know that we were very pleased with the way all three witnesses performed at the trial. Mr X, for example, not only held his ground on the issues, he also gave very cogent explanations that helped build up a good rapport with the judge. Indeed, we really felt that the judge warmed to him. The opposing QC had very little, if anything, to take away from the exchange and lost ground on several points. Overall, we feel our client came across very well to the judge, and it was in marked contrast with some opposing witnesses who were letting themselves get visibly annoyed with our QC. Thanks again for the training, everyone was very pleased with it". "Trevor, I would like to thank you very much for helping me through the past 2 days in the witness box. All the aspects of your course helped greatly, particularly your breathing and seating tip. We all thought the trial preparation you gave was perfect...you nailed it for us". "I wish I had this training before my previous case. I’d been on another training provider's course a few years ago and it was c*** compared to this".


Trevor is the most recognised expert witness in the UK. He was appointed Officer of the Order of the British Empire (OBE) in the Queen’s 2016 Birthday Honours List and a recipient of the British Citizen’s Award for his contribution to the community. His expert witness practice is a six times winner of the prestigious, UK Personal Injury Award (2012, 2013, 2015,2016, 2017 and 2018) and the 2019 British Law Awards. He was commended by Prime Minister Theresa May in her Points of Lights Awards for making change in their community and inspiring others.