The dependence of trickery (rather than ironclad evidence) to convict more demonstrates how the prosecution is less interested in seeing justice done, and more interested in packing penal facilities with bodies.
So yeah, my statement still stands: since there is considerable cause to doubt conviction assures actual guilt, all our prisoners convicted by our justice system are in fact political prisoners, convicted because someone doesn't like them, or they just got unlucky.
Sure, some are guilty, but we haven't determined that at all through the US system of justice, and now we may never be able to make that determination.
I'd like a phone charm that flashed on detection of radio output.
Amusingly, Robocop 2014 features a moment where a bad-guy is located by an unprotected phone in use (via 3rd party doctrine or dubious search) but we're supposed to cheer it on because Alex Murphy is good and the phone is owned by the henchman of an arms dealer.