The secret evidence, at the heart of Michael Jackson's child molestation case, will be the prime focus of today's pretrial hearings in Santa Barbara.
Michael Jackson's defence team accuse district attorney Tom Sneddon of obtaining some potentially illegal evidence, and are trying to get it dismissed.
It is also reported that a death threat by email, was made against Michael Jackson last week.
The message was traced to Ontario in Canada. Adrian Poffley, 26, of Kitchener, Ontario has been charged with sending the threat; and is scheduled to appear in court in September.