http://www.dccourts.gov/internet/documents/11-CF-589.pdf
opinion directly linked above
I see issues with the opinion. First it says that people wouldn't know about the law but then says that gun owners would certainly be required to know gun laws. I would see that the law would be ruled by a higher court as being constitutional but that this defendant (if nothing in the record in respect to gun ownership has been established) is not guilty for the reasons given.
Its a screwed up law for sure.
Currently a minor victory, very minor at this point in time.
I'm sure to the defendant is a huge victory...and it is, for him. So far.
I could see this final result: that the affirmative defense part being continued to be struck down ; but that the rest would survive. If the law goes to the next step in appeals.
So in this law...if you own a gun (not that its YOUR GUN unlawfully being transported), you should be aware of the law - if you don't, not.
The opinion of this court may be reversed on the ground that they provide - maybe re-struck down on other 14th amendment issues of equal protection - maybe.
And it highlights another issue I have with gun registration and forms related to guns (ATF 4473, DPS 3 forms in my state): these forms provide evidence in cases like this that you should have been aware of the gun laws.
And also highlights the advice: do not talk to the cops ...