From Monday's opinion by Justice Frank Menetrez, joined by Justices Richard Fields and Michael Raphael, in Schlichter v. Kennedy:
Grotke's approach differs from those taken by the attorneys in Noland and Alvarez [two previous cases involving hallucinated citations]. Grotke has not admitted that the Writ and the AOB [Appellant's Opening Brief] contain hallucinated citations that were produced by generative AI. Grotke admitted that he used AI in some fashion when preparing the AOB and that it was "possible" that he used AI in some fashion when preparing the Writ. But he maintains that the four spurious citations resulted from clerical error and that he intended to cite the actually existing cases for the propositions described in the declaration that he filed in response to our order to show cause. We find that Grotke's claims are not credible.
It is difficult to understand how Grotke's four spurious citations could possibly be mere clerical errors, and Grotke has not intelligibly explained how it would be possible. The spurious citations do not involve the mere omission or addition or transposition of one or several digits. Rather, all four spurious citations are completely different from the correct citations for the actually existing cases that have those case names. Grotke's spurious citations bear the hallmarks of hallucinated citations produced by generative AI. "[H]allucinated cases look like real cases. They are identified by a case name, a citation to a reporter, the name of a district or appellate court, and the year of the decision. [Citation.] But, they are not real cases."
