In United States V

In United States v. Jones (2012)  the Supreme Court decided:

A) to make it a  requirement for the police to seek search warrants, if possible, before taking involuntary blood tests from suspected drunk drivers.
B) police do not need a warrant to search a car.
C) ​ that placing a GPS tracking device on a drug suspect's car without a warrant is a search that falls under the rules of the Fourth Amendment.
D) that arrest, even on minor offenses, makes people subject to intrusive strip searches and body cavity inspections when they are placed in jail.
E) that drug-sniffing dogs cannot be brought to the front door of a home to seek evidence that will be used to get a search warrant.