Wow, this is an extremely complicated issue and for one thing really brings forth the inadequate system of cataloging beer brands. I have been in the chemical industry for over 30 years and have sold thousands of private label brand chemicals to wholesale distribution and retail. Every product family (same prd. but different sizes makes a family - for beer 12,16,32,keg, cask, etc. needs to be registered in each state it is sold in. Every nick name of that product must be added to the registration and the product carries a number, in my case an EPA number, that identifies the registered seller and the product. So number 123-12345 would cover my registered group:
25# pH+, 15#pH+, 5#pH+ and the various names I have registered pH Up, Raise It, Alk Up, etc.
When they come and check my place (before they might seize the product) they write down my product names and check the number to make sure that name is under the reg.
Different states get different fees but the yearly fees for EACH product family is 50-250/yr. This pays the inspectors..
Sorry for the long journey, but the PLCB would have names and numbers also no? So if I owned a bar it would be my obligation to make sure the brews I was selling had the correct names as registered by the PLCB. You can't carry a beer without checking if it is registered. It seems that their arguement is that the police didn't do enough cross checking for 50% of the confiscated beer and if they had they would have found variants on the names and realized they were legal. What about the other 50%? There was some illegal beer there.
Don't get me wrong, I'm all for homebrew, I'm just stating the legal position here. The seller has an obligation to prove legality of their wares. If I get pulled over I have to show the police my license and registration and my MSDS and DOT sheets if I am carrying hazardous materials. Those names on those materials better match or I get my materials confiscated and a substantial fine/jail.
It seems like an inspector could have checked before the raid and just warned the owners to get labels and correct names but perhaps, unlike the EPA the PLCB doesn't have field inspectors and goes straight to the raiding step.