"The second case involved Clayton Harris, who was stopped by a sheriff's deputy in Liberty County outside Tallahassee in 2006 for an expired license tag.
The officer brought in Aldo the shepherd, who focused on the truck's door handle. A subsequent search produced 200 pills inside the vehicle used to make methamphetamine.
Harris was charged, and the state high court also later reversed the conviction.
Those justices found the dog to be unreliable, since a few weeks after the initial search, the man was again stopped in his vehicle and the dog again alerted the door handle for the presence of drugs. But this time, none were found.
The state high court concluded the state's general assertion a dog was sufficiently "trained" and "certified" was not enough alone to establish probable cause justifying vehicle searches.
The cases argued Wednesday are Florida v. Jardines (11-564) and Florida v. Harris (11-817). Rulings are expected in coming months."