MIAMI — In a case closely watched by law enforcement nationwide, the U.S. Supreme Court agreed Friday to decide whether a Florida police dog's sniff outside the front door of a house with a marijuana growing operation is an illegal search.

Florida Attorney General Pam Bondi wants the justices to reverse a state Supreme Court decision that the K-9's sniff runs afoul of the Fourth Amendment protection against illegal search and seizure. Eighteen states and the territory of Guam have filed a brief in support of Bondi's position, concerned that other state courts might start issuing similar decisions.