Oklahoma Rules of Professional Conduct
Chapter 1, App. 3-A
Client-Lawyer Relationship
Rule 1.12. Former Judge or Arbitrator

1. (a) Except as stated in paragraph (d), a lawyer shall not represent anyone in connection with a matter in which the lawyer participated personally and substantially as a judge or other adjudicative officer, arbitrator or law clerk to such a person, unless all parties to the proceeding consent after consultation.
2. (b) A lawyer shall not negotiate for employment with any person who is involved as a party or as attorney for a party in a matter in which the lawyer is participating personally and substantially as a judge or other adjudicative officer, or arbitrator. A lawyer serving as a law clerk to a judge, other adjudicative officer or arbitrator may negotiate for employment with a party or attorney involved in a matter in which the clerk is participating personally and substantially, but only after prior notice to the judge, other adjudicative officer or arbitrator, and opposing counsel.
3. (c) If a lawyer is disqualified by paragraph (a), no lawyer in a firm with which that lawyer is associated may knowingly undertake or continue representation in the matter unless:
4. (1) the disqualified lawyer is screened from any participation in the matter and is apportioned no part of the fee therefrom; and (2) written notice is promptly given to the appropriate tribunal to enable it to ascertain compliance with the provisions of this rule.

5. (d) An arbitrator selected as a partisan of a party in a multi-member arbitration panel is not prohibited from subsequently representing that party.

   Comment
   

   This Rule generally parallels Rule 1.11. The term "personally and substantially" signifies that a judge who was a member of a multi-member court, and thereafter left judicial office to practice law, is not prohibited from representing a client in a matter pending in the court, but in which the former judge did not participate. So also the fact that a former judge exercised administrative responsibility in a court does not prevent the former judge from acting as a lawyer in a matter where the judge had previously exercised remote or incidental administrative responsibility that did not affect the merits. Compare the Comment to Rule 1.11. The term "adjudicative officer" includes such officials as judges pro tempore, referees, special masters, hearing officers and other parajudicial officers, and also lawyers who serve as part-time judges. Compliance Canons A(2), B(2) and C of the Model Code of Judicial Conduct provides that a part-time judge, judge pro tempore or retired judge recalled to active service, may not "act as a lawyer in any proceeding in which he served as a judge or in any other proceeding related thereto." Although phrased differently from this Rule, those Rules correspond in meaning.

Adopted effective July 1, 1988.