Florida v. Harris, 568 U.S. 237 (Feb. 19, 2013)

Concluding that a dog sniff “was up to snuff,” the Court reversed the Florida Supreme Court and held that the dog sniff in this case provided probable cause to search a vehicle. The Court rejected the holding of the Florida Supreme Court which would have required the prosecution to present, in every case, an exhaustive set of records, including a log of the dog’s performance in the field, to establish the dog’s reliability. The Court found this “demand inconsistent with the ‘flexible, common-sense standard’ of probable cause. It instructed:

In short, a probable-cause hearing focusing on a dog’s alert should proceed much like any other. The court should allow the parties to make their best case, consistent with the usual rules of criminal procedure. And the court should then evaluate the proffered evidence to decide what all the circumstances demonstrate. If the State has produced proof from controlled settings that a dog performs reliably in detecting drugs, and the defendant has not contested that showing, then the court should find probable cause. If, in contrast, the defendant has challenged the State’s case (by disputing the reliability of the dog overall or of a particular alert), then the court should weigh the competing evidence. In all events, the court should not prescribe, as the Florida Supreme Court did, an inflexible set of evidentiary requirements. The question—similar to every inquiry into probable cause—is whether all the facts surrounding a dog’s alert, viewed through the lens of common sense, would make a reasonably prudent person think that a search would reveal contraband or evidence of a crime.  A sniff is up to snuff when it meets that test.

Applying that test to the drug dog’s sniff in the case at hand, the Court found it satisfied.