The St. Petersburg Times reports that the Hillsborough State Attorney's Office will not prosecute Bucs rookie WR Mike Williams for a charge of driving under the influence. Williams was arrested in November, and tests indicated that his blood-alcohol level was 0.065 percent and 0.061 percent, below the threshold of 0.08 at which the state presumes a driver is impaired. But authorities said Williams failed a field-sobriety test, smelled of alcohol and appeared to have glassy eyes. State attorney spokesman Mark Cox said Friday that lab results showed Williams had no drugs in his system. Prosecutors decided to drop the DUI charge after reviewing those results and Williams' performance in the roadside field-sobriety test. "We're pleased by this news and are happy for Mike, who is already focused on an exciting 2011 season," said Bucs director of communications Jonathan Grella.