The first rebuttal came after the defense rested and the judge denied motions by Ken Lay, Enron's founder, and Jeffrey Skilling, the former president, to acquit, The Houston Chronicle reported Monday.
The defense had called 29 witnesses for Lay and Skilling, with the final one being a prominent Southern Baptist Convention minister, Ed Young, who testified that Lay is a trustworthy man. Prosecutors had called 22 witnesses. The trial has lasted 15 weeks.
Mike Muckleroy was sworn in Monday as the first of three rebuttal witnesses. Closing arguments are expected next Monday.