Paris Hilton will be unable to appear at her Civil trial

Hotel heiress Paris Hilton says that she's so "emotionally distraught and traumatised" since being sentenced to 45 days in jail, she cannot attend a civil trial which was due to start next Monday.

Hilton's Psychiatrist, Dr Charles Sophy has filed a legal declaration, in which he claims the troubled socialite is "not capable of any meaningful participation" in the civil case brought against her by diamond heiress Zach Graff.

Graff has launched her $10 million suit against Paris because of the "vicious lies" the hotel heiress spread about her that ended up being printed in the New York Post newspaper.

But Dr Charles says that Hilton's state of mind after being found guilty of violating her probation by driving with a suspended license means she "cannot effectively respond to examination as a witness or provide any significant input into her defence." The judge has postponed the trial until 22 August 2007, reports TMZ.