More thoughts on the Katie Couric documentary
The question appears to be -- just which (and how many) gun laws did she break in making it?
18 U.S.C. §922(a)(3) makes it a Federal felony for anyone but a licensed dealer to "transport into or receive in the State where he resides" a firearm. Now, this is not violated when the transfer occurs; it is only violated when the recipient brings the firearms into their home State. So the film's producer has taken to claiming that they turned the firearms over to police and did not bring them back to Colorado. But--
18 U.S.C. §922(a)(5)makes it a felony for anyone but a licensed dealer to "transfer, sell, trade, give, transport any firearm to any person ... who the transferor knows or has reasonable cause to believe does not reside in ... the State in which the transferor resides." So a Coloradan couldn't generally convey a firearm to an Arizonan without violating this provision.
The Gun Control Act does have an exemption for law enforcement, but it doesn't seem applicable. It says that, with some exceptions the Gun Control Act does not apply to the "transportation, shipment, receipt, possession, or importation" of guns sold or shipped to a State. 18 USC §925(a)(1). This seems to insulate the State but not the seller (receipt is excepted, but not transfer).