Dewey & LeBoeuf’s former billing chief testified Monday that one of the firm’s top executives, ex-CFO Joel Sanders, had instructed her to prepare client invoices aimed at artificially inflating the firm’s revenues.

After a juror’s illness led to a nearly weeklong break in the Dewey & LeBoeuf criminal trial, billing director Lourdes Rodriguez returned to court to testify Monday in the Manhattan district attorney’s case against Sanders, ex-Dewey chairman Steven Davis and former executive director Stephen DiCarmine. The three are accused of deceiving bank lenders and investors about the firm’s deteriorating finances before Dewey collapsed in 2012.