AI Use May Draw Sanction

The United States Court of Appeals for the Second Circuit has referred an attorney to its Grievance Panel for citing a non-existent source

We separately address the fact that Park’s counsel, Attorney Jae S. Lee, has admitted to citing a non-existent state court decision in her reply brief to this Court. Counsel reports that she relied on a generative artificial intelligence tool, ChatGPT, to identify precedent that might support her arguments, and did not read or otherwise confirm the validity of the (non-existent) decision she cited. Because this conduct falls well below the basic obligations of counsel, we refer Attorney Lee to the Court’s Grievance Panel, and further ORDER Attorney Lee to furnish a copy of this decision to her client.

An overdue reply brief

Park’s reply brief in this appeal was initially due May 26, 2023. After seeking and receiving two extensions of time, Attorney Lee filed a defective reply brief on July 25, 2023, more than a week after the extended due date. On August 1, 2023, this Court notified Attorney Lee that the late-filed brief was defective, and set a deadline of August 9, 2023, by which to cure the defect and resubmit the brief. Attorney Lee did not file a compliant brief, and on August 14, 2023, this Court ordered the defective reply brief stricken from the docket. Attorney Lee finally filed the reply brief on September 9, 2023.2

The reply brief cited only two court decisions. We were unable to locate the one cited as “Matter of Bourguignon v. Coordinated Behavioral Health Servs., Inc., 114 A.D.3d 947 (3d Dep’t 2014).” Appellant’s Reply Br. at 6. Accordingly, on November 20, 2023, we ordered Park to submit a copy of that decision to the Court by November 27, 2023. On November 29, 2023, Attorney Lee filed a Response with the Court explaining that she was “unable to furnish a copy of the decision.” Response to November 20, 2023, Order of the Court, at 1. Park v. Kim, No. 22-2057-cv (2d Cir. Nov. 29, 2023), ECF No. 172 (hereinafter, “Response”). Although Attorney Lee did not expressly indicate as much in her Response, the reason she could not provide a copy of the case is that it does not exist – and indeed, Attorney Lee refers to the case at one point as “this nonexistent case.” Id. at 2.

The court

At the very least, the duties imposed by Rule 11 require that attorneys read, and thereby confirm the existence and validity of, the legal authorities on which they rely. Indeed, we can think of no other way to ensure that the arguments made based on those authorities are “warranted by existing law,” Fed. R. Civ. P. 11(b)(2), or otherwise “legally tenable.” Cooter & Gell, 496 U.S. at 393. As a District Judge of this Circuit recently held when presented with nonexistent precedent generated by ChatGPT: “A fake opinion is not ‘existing law’ and citation to a fake opinion does not provide a non-frivolous ground for extending, modifying, or reversing existing law, or for establishing new law. An attempt to persuade a court or oppose an adversary by relying on fake opinions is an abuse of the adversary system.” Mata v. Avianca, Inc.

(Mike Frisch)