At his trial, Jardines argued that using a drug-sniffing dog at his house was an illegal search. The trial court agreed, and said that the state could not use the evidence discovered by the dog. Florida’s appellate court reversed that decision, saying that the evidence could be used because dog sniffs are not searches. Jardines appealed to the Florida Supreme Court, which agreed with the trial court. Florida appealed and the Supreme Court of the United States agreed to hear the case.