We always need to be skeptical and vigilant about government overreach, and my government is not one that I trust to take care of a cup of salt.
But even so, it's not that difficult to implement a fool proof system for the most robust, open shut cases with no room for abuse, especially in the modern day with our modern technology.
If one is caught in the act, on camera, live streaming it, caught with the weapon, openly admits it, says he is glad he did it, I think there's no reason that cannot justify a hanging...
But I do see the arguments all valid