Man, That sucks, I get mad when people fish in front of my feeders and they throw the fish back. I would be furious if I found out someone was taking fish from a feeding spot on my pond. That's not even sporting. Anyone can catch a bunch of bluegill in front of a feeder.
Good luck with all this. Remember, the police are your best allies in this battle. If you make them mad you might be up a creek without a paddle. I would be as polite as possible but I would also let them know how much this crime has impacted your pond.
Again, best of luck
