Kyllo v. United States
Background Information
Kyllo was under suspicion of growing marijuana so the police used a thermal detector on house to view all of the heat used to grow the substance. They used this evidence to get a warrent and Kyllo was convicted.
Constitutional Question
4th Amendment
Decision/Lasting Effect
The court decided 5 votes Kyllo, 4 votes against. Cannot do any sort of search without a warrent