The Supreme Court has yet to decide if drug-sniffing dogs can go door to door sniffing for more than Halloween treats.  But the justices have said yes to dogs at traffic stops that turn into drug stops, over-ruling a Florida Supreme Court decision.

A dog named Aldo was at a traffic stop.  The police officer used Aldo’s signal as probable cause to search the vehicle, which revealed meth lab paraphernalia.  The Florida Supreme Court had ruled that this was an illegal sniff and seizure, based on the spotty qualifications of Aldo—was Aldo properly trained to sit, stay, and sniff for methamphetamines, and what was his margin of error?  The Supreme Court justices, however sided with the dog.