i realize everyone is in freak mode and i agree its not safe to just assume anything with the gov, but i really don't forsee people getting into serious legal trouble when they have zero record and the gov can't prove they didn't own them all along. obviously the law is stupid, we all know that, but good luck being able to prosecute just about anyone on it. its nearly impossible. the only thing it really does is make it impossible for us to openly buy them both locally and online.
Yes.. but your defense and your attorney bills will kill you. My take on all of this is yes, it is up to the state to prove you are guilty but at what expense will it cost out of your pocket? I'm guessing someone will be charged, their mags and maybe even gun will be seized and charges will be filed. At that point you will contact a lawyer and the lawyer will tell you what it will cost to go to trial or what it will cost to plea to some lesser charge. At that point it will become a decision based on economics and even though you never end up at trial the gov keeps your stuff.
How about I just leave my magazine with my buddy in Texas. Drive back to Colorado be totally legal, get to keep my gun, no hassle. The firearms are not illegal, only the magazine. Next time I go back hunting with him I can use my magazine I left at his place.