They go to a 911 call about someone trying a home invasion. They arrive and find a solo guy who is armed and won’t do a single thing they say but says he’s a Fed.
Believing that on face value from an uncooperative man is a good way for a cop to wind up dead. And every plainclothes guy knows that fact *in spades*.
This tells me ATF and other FLETC types are constantly being told they are somehow superior to local police and to carry that movie mentality.
I didn't see that attitude surface until after he was cuffed.