A lawyer shall not:
(a) seek to influence a judge, juror, prospective juror or other official by means prohibited by law;
(b) communicate ex parte with such a person during the proceeding unless authorized to do so by law or court order;
(c) communicate with a juror or prospective juror after discharge of the jury if:
(1) the communication is prohibited by law or court order;
(2) the juror has made known to the lawyer a desire not to communicate; or
(3) the communication involves misrepresentation, coercion, duress or harassment; or
(d) engage in conduct intended to disrupt a tribunal.
2004 ABA Model Rule Comment
RULE 3.5 IMPARTIALITY AND DECORUM OF THE TRIBUNAL
[1] Many forms of improper influence