Being one of those stopped at a road block, I can tell you it causes a lot of anxiety to find yourself caught in one. Maybe it goes back to childhood but its very real. It's not guilt, either. As for the bad guys. They all get caught.
Respect is a two way street.
Being stopped and frightened as a way of life is not as good as it sounds from my side of the street. I have been in trouble with the law. I think the only way to keep people out of trouble is to show them what happens if you get in trouble . Over the decades the police departments throughtout the world has been given some nasty repor. I can't submit information I am not familiar with across the globe other than what I have personally experienced from the destinations I have been.