Yesterday we asked the Third Circuit Court of Appeals to consider our argument that law enforcement agents should have to obtain a warrant based on probable cause to attach a GPS tracker to a car and track its movements (you can read our amicus brief here).
In the case, the government suspected that Harry, Mark and Michael Katzin had robbed a number of Rite-Aid pharmacies. To confirm their hunch they attached a GPS tracker鈥攚ithout first going to a judge and getting a warrant鈥攖o Harry Katzin鈥檚 car. They used the GPS tracker to follow the Katzins when they traveled to another Rite-Aid, and arrested them shortly afterwards.
The question in the case is whether the agents violated the Fourth Amendment when they attached a GPS tracker to a car to track its movements without first obtaining a warrant based on probable cause. The Supreme Court unanimously in January that such tracking is a Fourth Amendment search. But now the government, which used to argue that GPS tracking isn鈥檛 even a search, is insisting that it falls into an exception to the usual rule that a search requires a warrant. For example, the government claims the 鈥渁utomobile exception鈥 applies, but that exception was created to ensure that contraband concealed in cars would not escape detection, not to permit tracking of individuals.
We are asking the Third Circuit to reject this argument. Warrants are essential because, as the Supreme Court has , they provide 鈥渢he detached scrutiny of a neutral magistrate, which is a more reliable safeguard against improper searches than the hurried judgment of a law enforcement officer engaged in the often competitive enterprise of ferreting out crime.鈥
This safeguard is particularly important when it comes to GPS tracking because the technology is cheap, convenient, difficult to detect, and highly intrusive. Because cost and effort will not deter excessive and unjustified use of GPS tracking, it is essential that courts impose strict requirements before Americans are subject to this powerful technology.