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International Justice Systems

The role of expert witnesses varies dramatically across global legal systems, shaped by centuries of tradition, procedural philosophy, and judicial structure. In this blog series, Round Table Group explores how countries like Japan and France integrate expert testimony into their courts—offering a comparative lens for professionals navigating cross-border litigation or simply curious about international legal norms. Together, these posts reveal how expert witnessing is not a one-size-fits-all practice. They highlight the importance of understanding local legal culture, especially for experts working internationally. Whether you're preparing for a foreign engagement or expanding your knowledge, this series offers essential insights into the global landscape of expert testimony.

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An Expert Witness Guide to Justice Systems: Japan 

Japan’s justice system offers a unique model for expert witness engagement—formal, judge-directed, and document-driven. Experts are appointed by the court to clarify technical issues, not to advocate for either side. Cross-examination is rare, and written reports are the norm. This post is part of The Experienced Expert blog series and our International Justice Systems collection, exploring global approaches to expert testimony.

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An Expert Witness Guide to Justice Systems: France

How does expert testimony work in a legal system where judges—not attorneys—lead the investigation?

In our latest post, we explore the French civil law tradition, where court-appointed experts play a central role in helping judges uncover the truth. From the Ordinance of 1667 to modern-day judicial missions, France offers a fascinating contrast to the adversarial model used in the U.S.

🔍 Key insights include: The role of éxperts judiciaires in French courts, how neutrality is structurally reinforced, why cross-examination is rare, what expert witnesses should know about payment and procedure.

Whether you’re an expert witness, litigator, or simply curious about global legal systems, this guide offers a valuable perspective.

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Three Big Differences in Expert Roles: UK vs US

While both systems share a common ancestry, US and UK legal systems have diverged with respect to expert witnesses. As the world grows smaller and more international, these differences impact experts who have the opportunity to work across the pond. Make sure that your engaging attorney has made you fully aware of any important differences that might impact your international performance.

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