悪あく魔まの証しょう明めい

noun

devil's proof; probatio diabolica

Legal term for the difficulty of proving a negative, especially in defamation or property cases where one must prove something does not exist.

• 悪あく魔まの証しょう明めいは、法ほう律りつ上じょう、立りっ証しょうが極きわめて難むずかしいとされる。

  The devil's proof is considered extremely difficult to establish under the law.

• この事じ件けんでは、被ひ告こくに悪あく魔まの証しょう明めいが求もとめられている。

  In this case, the defendant is being asked to provide a devil's proof.