****Do sting buys at gun shows. *****
The instant the feds make the sting word will get out. Yell “FED AGENT!” and see how fast they are surrounded by 10,000 very unfriendly gun show patrons.
Stings —
They just collect evidence for the attempted stings that go their way.
Then serve arrest warrants later.
This is how our local PD does booze for underage kids stings.
One fine day all the Quicky-Marts get served one after the other.