A judge shall not act as an arbitrator or a mediator or perform other judicial functions apart from the duties of judicial office unless expressly authorized by law.*
Haw. Code. Jud. Cond. 3.9
COMMENT:
[1] This Rule does not prohibit a judge from participating in arbitration, mediation, or settlement conferences performed as part of the duties of judicial office. Rendering dispute resolution services apart from those duties, whether or not for economic gain, is prohibited unless it is expressly authorized by law.