The Minnesota Court of Appeals has upheld a lower court that ruled it was unconstitutional for the D-N-R to install a GPS tracking device on a vehicle without a warrant. It comes out of a high-profile deer poaching case in Lac Qui Parle County in which charges against 39-year-old Joshua Liebl were thrown out. Officers after tracking his vehicle located two deer carcasses and more than 20 sets of deer antlers. But the Appeals Court says there was no search warrant issued based on probable cause, and so the lower court was correct in throwing out evidence collected through use of the GPS tracking device.