Incident Tracker

Prososki v. Regan, 321 Neb. 38 (2026)

referral

The Nebraska Supreme Court struck an appellant's brief in a divorce appeal after finding 57 of 63 citations defective — including about 20 AI hallucinations and three fabricated cases — dismissed the appeal, and referred counsel W. Gregory Lake to the Counsel for Discipline, holding that fictitious authority is sanctionable under existing candor and competence rules whether or not AI produced it.

Date of decision/order

2026-03-20

Court

Nebraska Supreme Court

Jurisdiction

US-STATE

AI tool

Not identified in the record

Conduct

In a marital-dissolution appeal, appellant's counsel filed a brief in which 57 of 63 citations were defective — including roughly 20 AI 'hallucinations', three entirely fabricated cases, and fabricated quotations — asserted by the appellee to have been generated by generative AI.

Consequence

See outcome

Regulatory outcome

Nebraska Counsel for Discipline: Appellant's counsel W. Gregory Lake was referred for investigation of potential violations of the Rules of Professional Conduct (competence, diligence, candor toward the tribunal, and dishonesty). [NEED: primary-source confirmation of the reported April 2026 indefinite suspension of Mr. Lake — on the follow-up watch list.] (2026-03-20)