Noun
border control (uncountable)
Measures taken by a state or a bloc of states to monitor its borders and regulate the movement of people, animals, and goods across the border.
We have people coming in by the millions...Am I absolutely opposed to immigration? No...We have to find a way to believe in the rule of law, believe in border control and at the same time, not villify the issue. Rand Paul
Border control separates Schengen from non-Schengen areas. Source: Internet