in the rapid development of the information age. Federal and statecourts have long been struggling to explore how the standard established by the Katzcase in emerging technology brought about by the means of investigation and evidence. [8]

2 new location tracking technology in the context of controversy

In recent years, the GPS evidence as both sides important points of dispute cases are increasing day by day, before the answer in 2012 the Supreme Court on the relationship between the GPS evidence and the fourth amendment, the federal and state court in front of problems related to different views, each has on its arguments