Comment(1) Self-regulation of the legal profession requires that members of the profession initiate a disciplinary investigation when they know that another lawyer has violated certain minimum standards of behavior as described in the Rule. Lawyers have a similar obligation with respect to judicial misconduct. An apparently isolated violation may indicate a pattern of misconduct that only a disciplinary investigation can uncover. Reporting a violation is especially important where the victim is unlikely to discover the offense. (2) If a lawyer were obliged to report every violation of the Rules, the failure to report any violation would itself be a professional offense. Such a requirement exists in many jurisdictions but has proved unenforceable. The Rule limits the reporting obligation to those violations that a self-regulating profession must vigorously endeavor to prevent. A measure of judgment is, therefore, required in complying with the provisions of this Rule. The term "substantial" refers to the seriousness of the possible offense and not the quantum of evidence of which the lawyer is aware. A report should be made to the bar disciplinary agency unless some other agency, such as a peer review agency is more appropriate in the circumstances. Similar considerations apply to the reporting of judicial conduct. Lawyers requiring assistance in determining the need to report a violation may confer with their Supreme Court District Committee member. Pursuant to 3.530(7) a lawyer's communications with a District Committee member are confidential. (3) A lawyer who knows that a judge has committed a violation of the Code of Judicial Conduct that raises a substantial question as to the judge's fitness shall, at a minimum, file a report with the Judicial Conduct Commission. The term "substantial" refers to the seriousness of the possible offense. (4) The duty to report professional misconduct does not apply to a lawyer retained to represent a lawyer whose professional conduct is in question. Such a situation is governed by the rules applicable to the client-lawyer relationship. (5) The duty to report misconduct is an important aspect of self-regulation, and is intended to achieve societal goals. In order to protect a lawyer who makes a report in compliance with the Rule and to encourage a lawyer to make a voluntary report of other acts of misconduct, the Rule provides qualified immunity to the reporting lawyer thereby removing the fear of retaliation by the reported lawyer or judge. The Rule's immunity provision is founded upon a similar rule of immunity provided by 4.300, Canon 3D(3) of the Kentucky Code of Judicial Conduct.