If you could get to it quick enough that is. I assume police departments these days have a procedure for cutting off wireless access to devices they confiscate

If you could get to it quick enough that is. I assume police departments these days have a procedure for cutting off wireless access to devices they confiscate by using radio frequency blocking bags. This of course brings up an interesting counter for actual terrorists, devices which don't fully power down and monitor for radio frequencies so if they are lost, the device automatically wipes itself.