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How are civil-law judges trained differently from common-law judges?

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Mosaic portrait of Emperor Justinian I with a jeweled crown and halo, from the 6th-century Basilica of San Vitale in Ravenna, Italy. — Procedural law Justinian I, detail of a 6th-century mosaic at the Church of San Vitale, Ravenna, Italy.

The training and career paths of civil-law and common-law judges differ fundamentally, reflecting their distinct roles within their respective legal systems.

Civil-Law Judges

In civil-law traditions, judges are part of a professional elite who function as civil servants. After graduating from law school, an aspiring judge typically completes a specific period of practical training or internship and passes a competitive examination. In some countries, such as France, this includes formal study at a specialized institution like the National School of the Judiciary, followed by practical internships in various legal settings.1234

These judges enter the judiciary at a low level and follow a structured career path, rising through the ranks via promotions based on performance evaluations. Because their training is standardized, they often share a common professional outlook, and their entire career is dedicated to judicial service.321

Common-Law Judges

In contrast, common-law judges are not subject to competitive examinations or a standardized judicial career track. Instead, they are typically appointed or elected to the bench in mid-career after gaining significant experience as private practitioners, government lawyers, or legal academics. They bring broad practical experience to the bench rather than specialized, pre-judicial training. There is no formal pattern of promotion, and they are not considered civil servants.561