State of Arizona v. Asalia Guadalupe Alvarez-Soto

Summary

The court held that the trooper had reasonable suspicion to stop the defendant for a possible traffic-lane violation because her driving, viewed in light of the total circumstances and the trooper's experience, objectively supported the suspicion. It also held that appellate courts may not independently reweigh video evidence and must apply the ordinary framework that defers to supported factual findings while reviewing constitutional conclusions de novo. The court affirmed the suppression ruling, vacated the court of appeals' opinion, and remanded for consideration of whether the stop was unlawfully extended.