Rule 5-200. Trial Conduct
In presenting a matter to a tribunal, a member:
(A) Shall employ, for the purpose of maintaining the causes confided to the member such means only as are consistent with truth;
(B) Shall not seek to mislead the judge, judicial officer, or jury by an artifice or false statement of fact or law;
(C) Shall not intentionally misquote to a tribunal the language of a book, statute, or decision;
(D) Shall not, knowing its invalidity, cite as authority a decision that has been overruled or a statute that has been repealed or declared unconstitutional; and
(E) Shall not assert personal knowledge of the facts at issue, except when testifying as a witness.
http://www.calbar.org/pub250/9/s0035.htm