since Chris knows the  law
tell us the difference  between illegal crossing at an official  port of  entry
and
crossing over unprotected field 
don't bluff
of the   190 or so countries in  UN  how many observe intentional law on refugees?
----------------
port of entry - front door/backyard

".. there’s the bizarre loophole that if refugees show up at an official port of entry, if they knock on the front door, as it were, we don’t have to let them in." 

"But if they sneak into the backyard, they have an ironclad right to stay for a hearing."

"Every country has a tipping point on border crossers. Do we know Canada’s?" -  William Watson | Financial Post -  March 13, 2017