Nisi Prius Definition and Legal Meaning

On this page, you'll find the legal definition and meaning of Nisi Prius, written in plain English, along with examples of how it is used.

What is Nisi Prius?

It is a phrase used for the original lower level or trial court (thus called “court of orginal jurisdiction”) where the case was first heard by the judge and the jury, irrespective of where it is heard now. A common meaning is ” unless before”.