In the Supreme Court of the United States, United States, petitioner, v. Antoine Jones, respondent : on writ of certiorari to the United States Court of Appeals for the District of Columbia Circuit : brief amicus curiae of Gun Owners of America, Inc., Gun Owners Foundation, U.S. Justice Foundation, Institute on the Constitution [and 12 others] in support of respondent /

At issue is whether defendant's Fourth Amendment rights were violated by the government's warrantless installation and use of a tracking device on defendant's vehicle to obtain evidence of illegal activity.