[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2010/images/03/11/art.getty.palin.closeup.jpg caption="Sarah Palin has been asked by the U.S. Department of Justice to testify against David C. Kernell."](CNN) - Sarah Palin and her husband Todd will testify in the federal case against a Tennessee man who allegedly accessed Palin's private e-mail account during the 2008 presidential race, Palin's attorney told CNN Thursday.
"Governor and Mr. Palin have been asked by the U.S. Department of Justice to testify in its ongoing criminal prosecution in the case of U.S. v Kernell," attorney Thomas Van Flein said in a statement. "The Palins expect to testify in person in Knoxville, Tennessee."
The case involves University of Tennessee student David C. Kernell, the 22-year old son of a Democratic state representative.
Kernell was indicted in October 2008 after he allegedly used information freely available online to guess the password to Palin's personal Yahoo! account, the name of which was posted on numerous Web sites at the time. Kernell accessed the account around the same time questions were being raised about Palin's use of personal e-mail accounts to conduct state business as governor of Alaska.
After gaining access to Palin's account, Kernell allegedly reset the password, scanned her account for potentially damaging information and posted the new password to a public Web site.
Federal prosecutors broadened their case against Kernell in 2009, charging him with four felonies: identity theft, wire fraud, computer fraud and obstructing a federal investigation. Kernell has pleaded not guilty to all four counts.
A federal judge has set the trial date for April 20.
Reached by CNN, Kernell's attorney Wade Davies declined to comment on the case.