Haw. Rev. Stat. § 658H-7: Prohibited mediator reports.

(a) Except as agreed to in writing by the parties or as permitted in subsection (b), a mediator shall not make a report, assessment, evaluation, recommendation, finding, or other communication regarding a mediation to a court, administrative agency, or other authority that may make a ruling on the dispute that is the subject of the mediation.

(b) A mediator may disclose:

(1) Whether a mediation occurred or has terminated, whether a settlement was reached, and attendance at the mediation;

(2) Mediation communication as permitted under section 658H-6; or

(3) A mediation communication evidencing abuse, neglect, abandonment, or exploitation of an individual to a public agency responsible for protecting individuals against such mistreatment, except as prohibited under section 658H-6(a)(7).

(c) A report, assessment, evaluation, recommendation, finding, or other communication made in violation of subsection (a) shall not be considered by a court, administrative agency, or arbitrator.