In law, a non liquet (commonly known as "lacuna in the law") is a situation where there is no applicable law. Non liquet translates into English from Latin as "it is not clear". According to Cicero, the term was applied during the Roman Republic to a verdict of "not proven" where the guilt or innocence of the accused was "not clear".
- Black's Law Dictionary (8th ed. 2004)
- See Charton T. Lewis, A Latin Dictionary, liqueo and Cic. Clu. 18.76. Deinde homines sapientes et ex vetere illa disciplina iudiciorum, qui neque absolvere hominem nocentissimum possent, neque eum de quo esset orta suspicio pecunia oppugnatum, re illa incognita, primo condemnare vellent, non liquere dixerunt.