It is unconstitutional to use a police dog to search for illegal drugs.

Question

Quizplus · Accepted Answer

The use of police dogs to sniff for illegal drugs is not considered unconstitutional in itself, as the U.S. Supreme Court has ruled that a dog sniff by a trained narcotics detection dog does not constitute a "search" under the Fourth Amendment, provided it is conducted in a place where there is no reasonable expectation of privacy, such as during a lawful traffic stop.

It Is Unconstitutional to Use a Police Dog to Search