From Latin, meaning “from the new.” When a court hears a case de novo, it is deciding the issues without reference to the legal conclusions or assumptions made by the previous court to hear the case. An appeals court hearing a case de novo may refer to the trial court’s record to determine the facts, but will but rule on the evidence and matters of law without giving deference to that court’s findings. A trial court may also hear a case de novo following the appeal of an arbitration decision.
See e.g. Rompilla v. Beard, 545 U.S. 374 (2005)