Okay, yes convictions can be messy and wrong, and juries can believe stuff from TV that isn’t true. Neither of those demonstrates government intent. None of the lawyers nor the juries nor the producers of Law and Order necessarily work for the government. You complained about my use of “imagine” and then threw out a completely hypothetical and vague scenario (three, actually). Even abuses of power by government employed individuals seeking some kind of retribution don’t demonstrate nefarious government purpose on the whole.
There are laws against wrongful convictions and untrue testimony and abuse of power too. Annie Dookhan went to prison, and convictions based on her false evidence are being dropped and overturned. Why do you choose to feel safe with insurance laws made by the government and not trial laws?