Prosecutors in the Dewey & LeBoeuf criminal trial made perhaps their strongest play yet to connect the dots between the firm’s three former top executives and alleged accounting irregularities on Wednesday.

Manhattan Assistant District Attorney Peirce Moser showed jurors a half dozen or so emails that, together with the testimony of a key witness, the firm’s former finance director Francis Canellas, appeared to show that former Dewey chairman Steven Davis and former executive director Stephen DiCarmine knew of at least some of the “accounting tricks” described over the past month and a half of trial.