(Court of Appeals of New York) – In this case, in an underlying federal action, the Securities and Exchange Commission moved for sanctions against appellant Dunn. The Magistrate Judge granted the motion in part. Respondent Committee of Professional Standards thereafter filed a petition alleging that Dunn had “engaged in fraudulent conduct prejudicial to the administration of justice adversely reflecting on her fitness as a lawyer” in violation of Rules of Professional Conduct 8.4(c), (d), and (h). The basis of the complaint was essentially the text of the Magistrate’s sanctions opinion. Judgment of the Appellate Division finding Dunn guilty of the charged misconduct and finding that collateral estoppel applied to the Magistrate’s sanctions order is reversed and the matter is remitted, where: 1) while the issue of whether Dunn had made false statements in her written declaration, it was not the focus of the hearing on the underlying motion for sanctions; and 2) the cursory nature of the sanctions proceedings itself failed to provide a full and fair opportunity to litigate the case.