For people already in possession of a firearm when an order is served, they have been granted additional criminal liability immediately. So do they just walk down to the cop shop and turn in their suddenly illegal firearms???
Back door gun confiscation is equally dangerous because the premise for any restraining order of protection is not a conviction by a court for anything but an inferred threat that can be misconstrued and manipulated for the purpose of further intimidation of the RKBA.
Even if the order is lifted, just the possession of a legal firearm during the course of the order has elevated the law abiding citizen to a federal offender forever taking their RKBA. This constitutes government tyranny. If the original charge is null and void, no subsequent charges arising from the original order should have standing.
The operative phrase there is "should have". What should be and what actually is are not the same thing in almost all cases where the 2nd Amendment is involved.