For more than two months, prosecutors in the Dewey & LeBoeuf criminal trial have walked jurors through a series of byzantine accounting adjustments employed by the firm after it was created through a merger in 2007. The Manhattan district attorney’s case revolves around the accounting, which the firm’s leaders allegedly used to deceive lenders and partners before Dewey finally went bust in 2012.

Lawyers for the defendants—former Dewey chairman Steven Davis, former executive director Stephen DiCarmine and ex-CFO Joel Sanders—have tried to sow doubt as to whether those maneuvers were actually illegal.