It took Gauvey a year to issue her lengthy opinion (and the suspect, in the meanwhile, was found and arrested without the help of his phone).
FORBES: Police Can't Ask Your Mobile Phone Where You Are In Order To Arrest You
2.
They sought a warrant from Judge Gauvey in order to contact the phone company to find out where the phone (and likely its owner) could be found so they could arrest him.
FORBES: Police Can't Ask Your Mobile Phone Where You Are In Order To Arrest You