(2001).
First piece of evidence not invasive. “Heat waves, like aromas that are generated in a kitchen,or in a laboratory or opium den, enter the public domain if and when they leave a building.” The court said the Fourth Amendment was applicable since the search provided information regarding the home's interior that otherwise could not have been obtained without a physical intrusion.The 54 opinion, written by Justice Antonin Scalia, restated the court's previous findings that a visual search of a home, without entry, is not a search and not restricted by the Fourth Amendment. TThe court said the Fourth Amendment was applicable since the search provided information regarding the home's interior that otherwise could not have been obtained without a physical intrusion.Cite
(http://abcnews.go.com/US/story?id=93127&page=1&singlePage=true)
Second piece of evidence not a search. “Heat waves, like aromas that are generated in a kitchen,or in a laboratory or opium den, enter the public domain if and when they leave a building.” “The technology, originally designed for the military, displays objects by distinguishing differences in temperature of surrounding objects, so that a person, warmer than the surrounding air, appears a different color than the air.” “Detective Larry Wilson of the Plano,
Texas, police force, said it has been common for police to use thermal imaging on houses without first obtaining a warrant, and that will change.” However they did have an infrared camera that used