Um, yes, Nicola Sturgeon announced it today. You sound a tad aggressive in your response.
You sound wrong in yours. There is no travel ban, present tense. The one you are talking about is yet to come into force.
How NS thinks this is going to work as of Monday I don't know. GMP don't have the resources to police the covid restrictions that are actually in force in GM, much less to work out where people have come from and whether they broke any of the laws there. If people from Scotland are permitted to come to even a single place in England, they can get to the whole country, because there aren't any restrictions on movement here. It's a ridiculous idea.