Professor Robert Weisberg commented in The Seattle Times about Barry Bonds' lawyers' defense strategies:

Robert Weisberg, a Stanford Law School professor, said both sides were engaged in "an incredibly careful verbal ballet." The issue, he said, will be Bonds' state of mind.

His defense could be that "he didn't know he was taking a banned substance, therefore statements he made, though false, are honestly false," said Weisberg, who added that such a defense is hard to prove. His better hope, Weisberg said, is for Bonds' lawyers to challenge the prosecutors' questioning of Bonds as too vague for his answers to have been false.