Okay, now you're just being disingenuous.
This is "Meet The Press", not "Moonshiners", "American Guns", or "Amish Mafia".
And you're confounding the formal burden of proof with the fact that putting on an effective defense also requires some proof--specifically, proof that the magazine was fake--in order to overcome David Gregory's own statement.
Ok, let me re-state my position very clearly, so you know I'm not being disingenuous.
Based on the existing video evidence and on-air statements, I would oppose prosecution.
If he had disassembled the mag on live TV, and shown the components, I would oppose prosecution.
If he had filled it with 31 dummy rounds, then cycled them flawlessly through an AR, I would oppose prosecution.
If he had used the 30 round mag as a weapon to beat the shit out of Wayne LaPierre on camera, I would oppose prosecution for possession of a hi-cap.
If a gang member uses a 30 round mag to kill a bunch of innocent people, I would oppose him being charged with possession of an illegal magazine, even if it meant he were to go free.
If one of you were charged with possession of a post-ban 30 round mag, I would oppose your prosecution no matter what. I would hope that the police would knowingly turn a blind eye, that the prosecutors wouldn't waste resources on such frivolity, that the court would dismiss the case at the first opportunity, that you got off on some technicality, or that one or more jurors nullified the law against the judge's instructions.
I see it as a miscarriage of justice whenever anyone suffers from state action of an unjust law, and I do not consider the victim's political beliefs when deciding whether or not prosecution is deserved.
Now, let's talk about who's being disingenuous. David Gregory appears to be honest and I respect his right to say whatever he wants. He truly believes that confiscation and supply reduction of hi-caps would reduce crime and he's trying to persuade the people and politicians of that. I find his views morally reprehensible, but I respect his honesty.
On the other hand, many fake libertarians on this forum say they oppose laws banning certain tubes with springs. Yet they get giddy like schoolgirls at the prospect of using the laws they want to repeal to make someone else suffer and sweat, for the sole reason that they dislike the accused and want to use the muzzle of the government's gun for persuasion. They are using government power as a hired service to persuade leftists that their Constitutionally protected speech and lobbying is wrong.
I respect the right of the fake libertarians to say whatever they want, of course. But if you're using state power as a tool of persuasion, then you're just as much a statist as David Gregory. Just be honest about your views and label yourself as a conservative authoritarian.