Bo's trial is seen as a potentially concluding chapter in the scandal.
His high profile and connections among the nation's ruling elite have made his case -- with its tales of greed and wrongdoing by a top official and his family -- an extremely delicate matter for Chinese authorities. It's taken more than a year, during which time the Communist Party underwent a major leadership change, to bring him to trial.
Many observers had expected proceedings to stick closely to a pre-planned script, seeing the trial's outcome as the result of a political deal struck between Bo and China's top leaders.
But as he often did in his political career, Bo has so far stolen the show, mounting a robust attack on the prosecution's case and ridiculing witness testimony. That has left China watchers trying to figure out how far he's veered off script.
Journalists from the international news media haven't been allowed inside the courtroom. But the court's official microblog account has delivered updates on developments inside, attracting almost half a million followers on Weibo, China's Twitter-like service.
CNN hasn't been able to verify how accurate and comprehensive the court's version of proceedings has been. But many observers have interpreted it as a reasonably close, albeit filtered, account.