As far as I understand, DUST cloning is much shorter range and is provided by an on-site 'respawn' location. Either an APC with vats inside, like in the book, or on an overhead War Barge, I guess. So, It's not quite as strongly regulated as Capsuleers, I would assume.
If you can get that APC near said city, you can still respawn. But that's my guess.
What is stopping us from creating our own DUST soldiers, or an entire DUST soldier corporation, and dedicating them to our capsuleer's protection?
The same thing that, say, keeps me from claiming Anshar Incorporated is a mighty corporation capable of fielding large fleets of capsuleers; the need to actually produce that fleet of capsuleers when the chips are down. DUSTies are PC entities that will have significant pull in the game world. I expect that making them up by the dozen will not go over well with the RP public at large.
Ahh, see I was misunderstanding. I thought you were saying we can't dedicate DUST soldiers to our Capsuleers, because there aren't any Capsuleers dedicated to protecting other Capsuleers. Or something.
I was not justifying creating a phantom DUST corp that "attacks your captains quarters, hitting for 63,254 damage." that would be silly.