As the Dewey & LeBoeuf criminal retrial continued Thursday, a lawyer for onetime Dewey chief financial officer Joel Sanders pressed a key witness about changes to his cooperation and plea agreement after an earlier trial ended with a hung jury in 2015.

Andrew Frisch, Sanders’ lead counsel, peppered former Dewey finance director Francis Canellas with questions about his meetings with prosecutors prior to testifying. Canellas is a cooperating witness in the prosecution’s case, which accuses Sanders and former Dewey executive director Stephen DiCarmine of plotting to mislead lenders and investors about Dewey’s finances before the firm’s 2012 collapse.