Such a requirement existed in many jurisdictions but proved to be unenforceable. This rule limits the reporting obligation to those offenses 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 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 misconduct.
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.