What happens to people stuck on a land border in North America? [closed]
My German friend's US Visa expires, and he plans to travel to Canada, where he does not need a Visa. However, he has overstayed in the past, and so I suspect he has a high change of being refused admission into Canada despite being on the Visa-exempt list. There have been similar questions that for most countries say that he would be taken to a detention centre, who would figure out where he's admissible, and take him to that country. I would like to know what would happen if this happens on the US side, vs. on the Canadian side. Examples of per-country policies from previous posts:
U.K. detention centre
France detention centre
Germany detention centre
Estonia detention centre
Saudi Arabia holds you right there at the border crossing
Thailand allows you to come back to the country as if you never left it
Brazil lets you in, but you must stay in the same city, and within 3 days either leave or request asylum
Quite notably, US, Canada, and Mexico are not on the list. Any experience?
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The Places Where Sneaking Over the US-Canada Border is Legal
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