Great. First Stingrays, now we also have Jugulars and Wolfhounds.

Stingrays are $100,000 devices that simulate cell phone towers and are used by law enforcement to capture a suspect's cell phone traffic. The problem is, it also captures EVERYONE ELSE'S TRAFFIC. There has been tremendous controversy about 4th Amendment rights because it's such a blanket capture of traffic. Many criminal cases have been dropped because the defense attorneys have pressed for details on the Stingrays and the prosecution abandoned the case under direction of the Federal Department of Justice to not reveal details.

Well, apparently they now they have smaller hand-held devices that are 1/20th the price and can filter for just a suspect's traffic. And the 4th Amendment problems remain.

http://www.wired.com/2015/08/security-news-week-police-use-mobile-cell-phone-trackers-avoid-court-orders/