Kind of like our southern border.
*lol* this reminds me about our rules of engagement (when i was in the military) “guarding” the border. rules of engagement for encountered persons. First cry STOP, (If he/she don´t stop) cry again STOP. After that a “STOP or i will shoot follows” Well and then if they don´t stop... guess what? you are allowed to fire one shot in the air and then you are allowed (if they are still running, and you feel like) to follow them or just watch them disappear
because that´s all for what you are there :-)