patroller

To be fair, a uniformed beat cop in a marked car with a pistol isn't operating in stealth mode. They aren't exactly snipers, deployed in gilly suits.

The preceeding idea is kind of stupid, but then again, an advertisement of proximity to deadly force and the liklihood of extrajudicial summary execution probably has some utility. Something that tells you that a line is about to be crossed, from which there is no return.

That little detail about police interaction isn't something that gets a whole lot of lip service. It's usually all "heroes" and implicit trustworthiness.