N.Y. R. Prof'l Conduct 3.5

(a) A lawyer shall not:

(1) seek to or cause another person to influence a judge, official or employee of a tribunal by means prohibited by law or give or lend anything of value to such judge, official, or employee of a tribunal when the recipient is prohibited from accepting the gift or loan but a lawyer may make a contribution to the campaign fund of a candidate for judicial office in conformity with Part 100 of the Rules of the Chief Administrator of the Courts;

(2) in an adversarial proceeding communicate or cause another person to do so on the lawyer's behalf, as to the merits of the matter with a judge or official of a tribunal or an employee thereof before whom the matter is pending, except:

(i) in the course of official proceedings in the matter;

(ii) in writing, if the lawyer promptly delivers a copy of the writing to counsel for other parties and to a party who is not represented by a lawyer;

(iii) orally, upon adequate notice to counsel for the other parties and to any party who is not represented by a lawyer; or

(iv) as otherwise authorized by law, or by Part 100 of the Rules of the Chief Administrator of the Courts;

(3) seek to or cause another person to influence a juror or prospective juror by means prohibited by law;

(4) communicate or cause another to communicate with a member of the jury venire from which the jury will be selected for the trial of a case or, during the trial of a case, with any member of the jury unless authorized to do so by law or court order;

(5) communicate with a juror or prospective juror after discharge of the jury if:

(i) the communication is prohibited by law or court order;

(ii) the juror has made known to the lawyer a desire not to communicate;

(iii) the communication involves misrepresentation, coercion, duress or harassment; or

(iv) the communication is an attempt to influence the juror's actions in future jury service; or

(6) conduct a vexatious or harassing investigation of either a member of the venire or a juror or, by financial support or otherwise, cause another to do so.

(b) During the trial of a case a lawyer who is not connected therewith shall not communicate with or cause another to communicate with a juror concerning the case.

(c) All restrictions imposed by this Rule also apply to communications with or investigations of members of a family of a member of the venire or a juror.

(d) A lawyer shall reveal promptly to the court improper conduct by a member of the venire or a juror, or by another toward a member of the venire or a juror or a member of his or her family of which the lawyer has knowledge.