dealing

I have anxiety issues and get stressed out easily, and I can imagine there are stressful situations that you can use a "chill out" for? Do you take anything to keep your emotions in check while dealing with the law?

On TV, I only see officers call for back up if they're about to confront a violent criminal. Yet, in real life, I have seen a couple of cop cars on the freeway seemingly dealing with someone who's less than dangerous. So, when do police officers call for back up? :confused: