That's a cute distinction, but useless.
They don't wear distinguishing uniforms, and when a group approaches me to beat me senseless or worse, I'm in no mood for cute semantic distinctions.
In 1993, I attempted a brief visit into Philadelphia on my way from NYC to DC. Two minutes after exiting the freeway, I made a U-turn, an have no intention of ever trying again, until all the historic buildings and monuments are moved to a human environment.
That’s a cute distinction, but useless.
They don’t wear distinguishing uniforms...