So first he hires PI's to go out of state to try and entrap gun stores into breaking the law. The result? A bunch of civil lawsuits forcing shops to close, a letter of reprimand to him by the BATFE, a new law specifically targeting Bloomberg's actions, and not a single criminal charge pressed against any of the shops.
Bloomie apparently considered that a victory as he has now done the same thing at out of state gun shows, hiring PI's to go to various states and try to buy guns from "unlicensed firearm dealers" and exploit the 'Gun Show Loophole', nevermind the fact that these same transactions can occur outside of any show. And all of this right before the upcoming election.
I'm going to guess that again there will be no criminal charges against the alleged sellers.
More at SIH.