Chris28 wrote:No. the aardvark is right. All people from outside the EU need leave to enter the UK. Catalans Aussies must satisfy an immigration officer on arrival in the UK that they qualify for entry to do what they want to do, even for a temporary stay. They don't need UK visas, just permission to enter the UK.
And as a decision on a specific individual has already been made, which decided, apparently, that his presence here is not conducive to the public good, his only proper route would be to appeal that decision.
And whilst I don't know enough about the Immigration Rules to be absolutely certain, despite what the artricle cited above suggests, I'd be extremely surprised if it is even possible for another person in the Border Agency to override the decision already made at that level. It would be an appeal by the back door, plus it would mean there was nothing to stop a person attempting to enter again and again until they found an official who let them in.
If his presence is indeed deemed not to be conducive to the public good, then I don't see how it makes any difference if his presence is only to be for a few days. It either is conducive, or it isn't.