Lawyers for the former chief executive of KB Home have provided no evidence of prosecutorial misconduct that would necessitate a separate evidentiary hearing, the government argued on Tuesday in its stock options backdating case against him.

Instead, the government argued, lawyers for former company Chief Executive Officer Bruce Karatz are pursuing a “fishing expedition” to attack the credibility of prosecutors who work in the same district in which other prosecutors were found to have engaged in misconduct in the backdating case against two former executives of Broadcom Corp.