Quite often, the owners are not on the premises when the police come in. It's the bartender who is arrested and who faces charges of selling alcohol without a license. If the owner is on site, he or she may be charged, but police said that seldom happens. One bar owner and his lawyer called the bar during the raid. They were concerned only with the bar's alcohol and TVs, which were confiscated.
One bartender, sitting in handcuffs before she was carted away to jail, told me that she saw the bar's license, which read "07 08." But she didn't notice the fine print, which put the expiration date at Oct. 31, 2008. If you tend bar, you might take a look at the license at your bar to save yourself the hassle.