125JHP, if I saw a shooting in my front yard, and the shooter was wearing a black nylon jacket with POLICE on the back in big white letters, I would hold a gun on him while I was calling 911.
If he was wearing a black ball-cap that said FBI, I would hold a gun on him while I was calling 911.
Now, IF this jacket or cap was only available to people that really were police or FBI, then maybe I'd believe them. But since they are available just about everywhere, they mean nothing.
So if the shooter, in plain clothes, flashed his "Official Concealed Weapons Carrier" badge, I'd hold a gun on him while I called 911. Let the boys in the blue uniforms with the black and white cars figger it out.
And if YOU were the shooter, and I walked up with gun in hand, and you turned and pointed your gun at me, while holding your little CCW badge out, I'm still gonna shoot you. Anybody can buy one of those badges. You don't need a carry permit. All you need is 10 bucks or so. It means nothing.
The only person I would NOT have a gun pointed at, if he did a shooting in front of me, would have a badge pinned to the front of his uniform and be wearing a Sam Brown with 50 pounds of gear on it. Him, I'd give the benefit of the doubt.