In Kyllo v. United States (2001), the U.S. Supreme Court ruled that when the government uses a device that's not in use by the general public to "see"
things it could not without intrusion, that is a "search"
and requires a warrant.

Question

Quizplus · Accepted Answer

In Kyllo v. United States, the Supreme Court held that the use of thermal imaging technology to detect heat patterns inside a home, when such technology is not in general public use, constitutes a search under the Fourth Amendment and therefore requires a warrant.

In Kyllo V