The Supreme Court has ruled in a 5-4 decision that when the government uses trained police dogs to investigate a home and its immediate surroundings it is a “search” under the Fourth Amendment.

The case involved the Miami-Dade Police Department and Drug Enforcement Administration responding to an “unverified tip that marijuana was being grown in the home” of Joelis Jardines. In 2006, a joint surveillance team watched Jardines’ home and then, seeing there was no activity around the house, Miami-Dade Detective William Pedraja approached the home with Detective Douglas Bartelt, who had arrived at the scene with a drug-sniffing dog.