I could buy myself fatigues, boots, a bullet-proof vest, a gun and a club.
I could put on a vest over it with big white letters spelling out POLICE or ICE.
I could then drive an unmarked white van and remove the license plates.
I could put on a black beanie hat and a face mask.
I could pull over on any busy city street, get out, and forcefully drag any random person into my van. If they resisted or struggled, I could threaten them with my gun. If anybody asked, I could say I am ICE and I don’t need to identify myself.
I could then lock the abducted person into my van and drive away.
I could do whatever I wanted with that prisoner.
Nobody would know who I was, there would be no recourse.
It this still a free country?