Delaware Court Strikes Down Warrantless GPS Tracking

From the Electronic Privacy Information Center:

The Delaware Superior Court has ruled that police must obtain a warrant before using GPS devices to monitor vehicles. The Court said that the Delaware Constitution protects its citizens' reasonable expectation of privacy from "constant surveillance." "Everyone understands there is a possibility that on any one occasion or even multiple occasions, they may be observed by a member of the public or possibly law enforcement," the Court reasoned, "but there is not such an expectation that an omnipresent force is watching your every move."

Here is the text of the decision:

Delaware v. Holden