Model Rule of Professional Conduct 8.3
Definition
The ethical rule relating to the reporting of professional misconduct. The rule requires a lawyer to inform the appropriate professional authority if he knows that another lawyer’s violation of the Rules of Professional Conduct raises a substantial question as to the other lawyer’s honesty, trustworthiness, or fitness as a lawyer or that a judge’s violation of rules of judicial conduct raises a substantial question as to the judge’s fitness for office. The rule does not require disclosure of information protected by Rule 1.6 or gained while participating in an approved lawyers’-assistance program.