Law enforcement officers rely on technology for surveillance. And as new technologies emerge, society can expect that those charged with our day-to-day protection will also utilize the fruits of science alongside the rest of us. But at what point on the technological timeline do the limits we bestow on law enforcement no longer adhere to the fundamental interests we all enjoy under the Constitution? Can changes in technology render the jurisprudence of the past obsolete? Although these questions have a never-ending stream of application, this Recent Development argues that the well-established Fourth Amendment precedent of yesterday still applies to the GPS surveillance technology used today.