Comment: I imagine that anyone who has

(See in situ)

In reply to comment: I responded to the OP that (see in situ)

I imagine that anyone who has

I imagine that anyone who has a 4473 for a firearm and does not have proof (i.e., bill of sale/transfer or police report "stolen") and claims to no longer have it will be indefinitely detained until the weapons show up. That is my guess. I'm sure they have thought of all the ins and outs of how people may try to get around it.