Judges have a lot of leeway to exclude evidence at trial. But in *Brubaker v. Andy Strum* (D2d7 Dec. 10, 2021) 2021 WL 5856791 (no. B307887) (nonpub. opn.), the exclusion was an abuse of discretion. The trial judge excluded the evidence supporting the appellant's motion for a renewed domestic violence restraining order because he thought the evidence of harassment was barred by the doctrine of issue preclusion. But the judge misunderstood the doctrine of issue preclusion. That was a legal error. As a legal error was the basis of the exclusion, the exclusion order had to be reversed.
**The upshot**: Evidentiary rulings normally are difficult to challenge on appeal, being subject to the deferential abuse of discretion standard. But when an evidentiary ruling is based on an error of law, you may be entitled to something more like de novo review. That is what happened in this case.