Yep, the way the format was written specified that one could not be prosecuted for a current or prior violation of law........that apparently included those 'walkedoffwith" brought home AWs. There was also reference to an exclusion to the prohibition in the case of falsified statements tho.
And yeah, I'm referring to the '68 amnesty that came about by virtue of a U.S. Supreme Ct. decision.........the Haynes case wherein the deciding factor was the arguement under the 5th involving self incrimination.
It's kinda remarkable that the USC essentially threw out the NFA '34 act, and then Congress basically repassed the same law with the '68 act!
If you are curious I'll try to dig up my old amnesty registration and quote the section I refer tto.
Far as the State or Local laws go, even if you lawfully hold such a device Federally, you are STILL liable for prosecution under those jurisdictions..............ie my friends case with the Maxim gun.......he got away with it because the State of N.Y. did not know of it's existence. Interestingly, he got called on the interstate transport from N.Y to Fl. by the ATF while living with me, as I recall he produced a C&R license that covered such transportation