June 1, 2026 (in 3 days): New York: 22 NYCRR Part 161 takes effect, system-wide AI policy for all UCS courts

Zavadovsky v. Republic of Austria

U.S. District Court, District of Columbia · D.D.C. · District of Columbia bar guidance

Pro-se party

Conduct

Pro se plaintiffs suing Austria and Austrian officials filed briefing replete with fake quotations and citations to nonexistent cases.

Consequence

Court flagged the fabrications and issued a Rule 11 warning; no formal monetary sanction or dismissal-as-sanction.

Lesson

Pro se foreign-sovereign immunity cases are now a flagged AI-hallucination pattern in D.D.C.

Other

Verified May 14, 2026

Citation
Zavadovsky v. Republic of Austria, No. 1:25-cv-01008 (D.D.C. Mar. 31, 2026) (Contreras, J.)
Decided
March 31, 2026

Summary

Boris Zavadovsky and Elena Dvoinik, proceeding pro se, filed a civil action against the Republic of Austria, multiple Austrian ministries and embassy officials, attorney defendants, and U.S. federal officials. In a March 31, 2026 memorandum opinion granting the defendants' motions to dismiss and to quash service, Judge Rudolph Contreras found that plaintiffs' filings were "replete with misstatements of law and citations to nonexistent cases and fake quotations," identifying fabricated quotations attributed to United States v. Microsoft, Apotex v. FDA, Thomas v. Patton, and other decisions. The court held the hallucinated authorities "bear the hallmarks of reliance on an artificial intelligence ('AI') tool," noting plaintiffs had insisted their pleadings were not AI-generated.

AI tool:
Generative AI implied; the order references citations characteristic of AI hallucination output
This case summary is informational only. Verify the underlying opinion or order against the primary source before relying on it in any filing or client matter.

What sanction did the court impose?

Defendants' motions to dismiss and to quash service granted; no monetary sanction or dismissal-as-sanction imposed for the citation conduct. Plaintiffs were cautioned that further Rule 11(b) violations "will not be tolerated" and that future suspected violations would draw an order to show cause, with sanctions that could include nonmonetary directives, a penalty paid into court, or an award of the opposing party's fees.

Why does Zavadovsky v. Republic of Austria matter for law firms using AI?

Zavadovsky v. Republic of Austria is a March 2026 D.D.C. memorandum opinion addressing fabricated case citations in pro se filings against a foreign sovereign. Judge Contreras found that plaintiffs’ briefing was replete with misstatements of law, citations to nonexistent cases, and fake quotations, and held that the hallucinated authorities bore the hallmarks of reliance on an AI tool, even though plaintiffs insisted their pleadings were not AI-generated. The order sits within a broader cluster of recent D.D.C. AI-citation matters; Judge Contreras’s response is consistent with the prevailing D.D.C. approach of warning-with-Rule-11-notice for first-instance pro se hallucinations. Case parties include the Republic of Austria, the Austrian Ministry for European and International Affairs, the Austrian Finanzprokuratur, attorney defendants Elke Rolff and Dale Webner, and several U.S. federal officials.

Implications for your firm

Operational steps a firm reading this case may wish to consider documenting. Strategic and rule-application calls belong to your firm's attorneys.

  • Screen pro se filings in foreign-sovereign immunity cases for AI-citation patterns; the procedural complexity of FSIA briefing creates conditions where pro se litigants over-rely on AI tools.
  • Track Judge Contreras's emerging chambers practice on AI-hallucinated citations in pro se filings; the D.D.C. has multiple recent orders addressing this pattern.

Sources

Primary sources

Further reading