But in the contemporary era, Continental laws have formed the principle on the basis of the adjudged force, while Anglo-American laws take protection against double jeopardy as the basis of it.

一事不再理原则起源于古罗马法，在近现代大陆法系形成了以既判力为基础的一事不再理原则，而英美法系则形成了以禁止双重危险为基础的一事不再理原则。

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