Matter of Weber
CC New York · Oct 10, 2024
- Jurisdiction
- state
- Court
- CC New York
- Record ID
- matter-of-weber-2024-10-10
- Observed outcome
- AI-assisted Evidence Inadmissible; Affirmative Duty to Disclose AI Use for Evidence Established.
- Known monetary consequence
- Not recorded
Why this matter warrants attention
Outcome: AI-assisted Evidence Inadmissible; Affirmative Duty to Disclose AI Use for Evidence Established.. AI UseIn a trust accounting proceeding, the objectant's damages expert testified that he used Microsoft Copilot (described as an AI chatbot) to cross-check his damages calculations presented in a supplemental report.Hallucination DetailsThe issue wasn't fabricated citations, but the reliability and verifiability of the AI's calculation process. The expert could not recall the specific prompts used, nor could he explain Copilot's underlying sources or methodology.…
The court emphasized the "garbage in, garbage out" principle, stressing the need for users to understand AI inputs and processes. It stated that the mere fact AI is used does not make its output admissible; reliability must be established. The lack of transparency regarding the AI's process was a key factor in finding the evidence unreliable
Disclose any AI-assisted evidence before offering it — undisclosed use triggers Frye hearings and automatic exclusion.
Failure modes and consequences
- Trial
- None Adjudicated
- AI attribution
- Reported
- Recorded tool
- MS Copilot
- Known monetary consequence
- Not recorded
- Procedural posture
- AI-assisted Evidence Inadmissible; Affirmative Duty to Disclose AI Use for Evidence Established.
law.justia.com
Docket or legal-document mirror. The recorded link is hosted by a legal document repository or mirror.
Open underlying sourceA recorded source link is not a substitute for checking the underlying order, filing, opinion, or disciplinary record.
What this record does—and does not—establish
MS Copilot is recorded in the source dataset; confirm the basis in the linked document.
The record summarizes the outcome described in the linked public source. The recorded link is a legal-document or docket mirror. This page is not a substitute for the complete docket, subsequent history, or jurisdiction-specific advice.
Latest evidence review: Source Unavailable (medium confidence).
Controls suggested by the public record
- Apply the same source-checking controls to MS Copilot output as to any other research input.
- Read the linked source and subsequent docket history before relying on this record for legal work.