Does a dog sniff conducted during a lawful traffic stop violate the Fourth Amendment? | Quick Homework Help

For this week’s Case Brief assignment, you only have to do the Holding and the Rationale)

Read the link to the majority opinion (by Justice Stevens) in the Illinois v. Cabelles case.
03-923.ZO.html

Complete the case brief by aIDing the Holding and Rationale.

CITATION: Illinois v. Caballes, 543 U.S. 405 (2005).

FACTS:
An Illinois state trooper stopped a motorist for speeding and radioed in. A second trooper, overhearing the transmission, drove to the scene with his narcotics-detection dog and walked the dog around the car while the first trooper wrote the motorist a warning ticket. When the dog alerted at the automobile’s trunk, the officers searched the trunk, found marijuana, and made an arrest. Caballes was convicted of the drug offense and sentenced to 12 years imprisonment and a fine of $256,136. The Illinois Supreme Court reversed the conviction. The case was appealed to the United States Supreme Court.

ISSUE:
Does a dog sniff conducted during a lawful traffic stop violate the Fourth Amendment?