Whether appellate courts should review a trial court's probable-cause determination de novo or deferentially as an abuse-of-discretion ruling.
Holding
Probable cause is a mixed question of law and fact that appellate courts may review de novo when its resolution does not turn on an evaluation of witness credibility and demeanor.
Reasoning
Appellate courts must give almost total deference to trial-court findings of historical fact supported by the record, particularly when those findings rest on credibility and demeanor. The same deference applies to mixed questions whose resolution itself turns on credibility and demeanor.
But a probable-cause determination under the totality of the circumstances generally does not place the trial judge in a meaningfully better position than a reviewing court. Once the historical facts are accepted, an appellate court may independently decide whether those facts amount to probable cause.
The Court relied on Ornelas v. United States for the proposition that independent review of reasonable-suspicion and probable-cause determinations helps appellate courts maintain and clarify governing legal principles. It therefore held that the court of appeals properly could decide probable cause de novo after deferring to the trial court's historical fact findings.
To eliminate inconsistency in its own precedent, the Court expressly overruled DuBose v. State and State v. Carter to the extent they required near-total deference on mixed questions not dependent on credibility and demeanor. It also overruled Arcila v. State insofar as Arcila was understood to limit this Court's ability to conduct its own review of an intermediate court's application of law to facts.