Daniel James Cummins v. Moises Becerra
E.D. California · Feb 9, 2026
What happened in this matter?
The court issued an Order to Show Cause requiring counsel to explain the inclusion of AI-hallucinated case citations in briefing and the unauthorized appearance of a law student. The court found the citations lacked existence or relevance, mirroring patterns of AI-generated content, and determined that a prior errata filing was insufficient to address the scope of the errors.
- Why the court cared
- Fabricated: Case Law | Petitioner's reply included a citation to 'Vuong' which, per petitioner's errata and the court, does not appear in publicly available legal databases and was identified as erroneous. || Fabricated: Case Law | Petitioner's reply included a citation to 'Arellano' which, per petitioner's errata and the court, does not appear in publicly available legal databases and was identified as erroneous. || Fabricated: Case Law | Petitioner's reply included a citation to 'Calderon' which, per petitioner's errata and the court, does not appear in publicly available legal databases and was identified as erroneous. || Fabricated: Case Law | Petitioner's reply included a citation to 'Pham' which, per petitioner's errata and the court, does not appear in publicly available legal databases and was identified as erroneous. || Fabricated: Case Law | The motion and reply contain numerous other citations that either do not exist or do not support the propositions for which they were offered; the court found these bear the hallmarks of AI-generated 'hallucinated' cases.
- Why it matters now
- Filing an errata does not cure a brief full of hallucinations; courts still issue OSCs on the underlying AI misuse.
Why this matter is tracked
In a habeas corpus proceeding, the U.S. District Court for the Eastern District of California issued an Order to Show Cause (OSC) regarding counsel's inclusion of numerous non-existent and erroneous case citations in a motion and reply brief. The court identified these citations as bearing the hallmarks of AI-generated hallucinations. Although counsel filed an errata attempting to correct four specific citations, the court noted the filing failed to address all erroneous citations and did not explain their inclusion. Additionally, the court ordered the petitioner to show cause regarding the unauthorized appearance of a law student in violation of local rules. The court cited prior jurisprudence regarding AI-generated hallucinations and local rule compliance as the basis for the OSC.
Filing an errata does not cure a brief full of hallucinations; courts still issue OSCs on the underlying AI misuse.
Record details
What the record establishes about AI use
The court identified citations as bearing hallmarks of AI tools.
Order to Show Cause issued February 9, 2026, following a motion to enforce and modify habeas relief.
Correction behavior is not separately verified in the current record.
Tracked discrepancy record
5 citation, quotation, or authority issues are recorded in the source dataset.
- Fabricated: Case Law | Petitioner's reply included a citation to 'Vuong' which, per petitioner's errata and the court, does not appear in publicly available legal databases and was identified as erroneous.
- Fabricated: Case Law | Petitioner's reply included a citation to 'Arellano' which, per petitioner's errata and the court, does not appear in publicly available legal databases and was identified as erroneous.
- Fabricated: Case Law | Petitioner's reply included a citation to 'Calderon' which, per petitioner's errata and the court, does not appear in publicly available legal databases and was identified as erroneous.
- Fabricated: Case Law | Petitioner's reply included a citation to 'Pham' which, per petitioner's errata and the court, does not appear in publicly available legal databases and was identified as erroneous.
- Fabricated: Case Law | The motion and reply contain numerous other citations that either do not exist or do not support the propositions for which they were offered; the court found these bear the hallmarks of AI-generated 'hallucinated' cases.
Questions this record answers
- What happened in Daniel James Cummins v. Moises Becerra?
- The court issued an Order to Show Cause requiring counsel to explain the inclusion of AI-hallucinated case citations in briefing and the unauthorized appearance of a law student. The court found the citations lacked existence or relevance, mirroring patterns of AI-generated content, and determined that a prior errata filing was insufficient to address the scope of the errors.
- Why does Daniel James Cummins v. Moises Becerra matter for legal AI risk?
- Filing an errata does not cure a brief full of hallucinations; courts still issue OSCs on the underlying AI misuse.
- What does the public record establish about Daniel James Cummins v. Moises Becerra?
- Retained unchanged after audit: the existing summary is source-specific, non-placeholder, and supported by the recorded source link. Read the underlying source before relying on it for legal advice or a filing.
- Which source supports this Daniel James Cummins v. Moises Becerra summary?
- The recorded source is Damien Charlotin case archive. It is classified as publisher document archive; review the linked material and subsequent docket history before relying on this summary.
Related matters
Related by court, jurisdiction, tool, or classified failure pattern. Similarity does not imply the same facts or outcome.