Supreme Court Report

Supreme Court of the United States · Official docket →

William Trevor Case v. Montana

Paid petition · Supreme Court of Montana, No. DA 23-0136 · judgment August 6, 2024


Decided · January 14, 2026
Pre-decision estimate: 7% cert probability (95% interval 4%–13%)

Before the decision, about 1.7× the 4.1% base rate. The model weighted this up for counsel with five or more prior petitions here, a circuit split argued in the petition, and a petition citing more than ten dissents, and down for a state or local-government respondent.

Question presented

Whether law enforcement may enter a home without a search warrant based on less than probable cause that an emergency is occurring, or whether the emergency-aid exception requires probable cause.

Counsel of record

For petitioner
Fred Anthony Rowley Jr.
Wilson Sonsini Goodrich & Rosati

For respondent
Christian Brian Corrigan
Montana Department of Justice

Case

Subject area
Criminal Procedure (estimated from the questions presented, in the Supreme Court Database’s categories)

Conference history
Distributed for 5 conferences

Amicus briefs
1 cert-stage · 13 merits
(9 supporting pet./neither, 4 respondent)

Linked docket
24A361

Orders
Order list, June 2, 2025 · Certiorari granted
Miscellaneous order, September 30, 2025

Argument & decision

Argued October 15, 2025 — Fred A. Rowley · Christian B. Corrigan. Listen and read along · the Court’s audio

Decided January 14, 2026. Opinion by Kagan.

Proceedings

  1. Aug 05 2026
    Record returned to Anaconda-Deer Lodge District Court.
  2. Feb 17 2026
    Judgment and Mandate Issued.
  3. Jan 14 2026
    Adjudged to be AFFIRMED. Kagan, J., delivered the opinion for a unanimous Court. Sotomayor, J., and Gorsuch, J., filed concurring opinions.
  4. Oct 15 2025
    Argued. For petitioner: Fred A. Rowley, Jr., Los Angeles, Cal. For respondent: Christian B. Corrigan, Solicitor General, Helena, Mont.; and Zoe A. Jacoby, Assistant to the Solicitor General, Department of Justice, Washington, D. C. (for United States, as amicus curiae.)
  5. Oct 03 2025
    Reply of petitioner William Trevor Case filed. (Distributed)
  6. Sep 30 2025
    Motion of the Solicitor General for leave to participate in oral argument as amicus curiae and for divided argument GRANTED.
  7. Sep 10 2025
    Brief amici curiae of Michigan, et al. filed. (Distributed)
  8. Sep 10 2025
    Brief amici curiae of Local Government Legal Center, et al. filed. (Distributed)
  9. Sep 10 2025
    Brief amicus curiae of United States filed. (Distributed)
  10. Sep 10 2025
    Motion of the Solicitor General for leave to participate in oral argument as amicus curiae and for divided argument filed.
  11. Sep 09 2025
    Brief amicus curiae of Professor Michael J.Z. Mannheimer filed. (Distributed)
  12. Sep 05 2025
    Record received electronically from the Supreme Court of Montana and available with the Clerk.
  13. Sep 03 2025
    Brief of respondent Montana filed. (Distributed)
  14. Sep 02 2025
    CIRCULATED
  15. Aug 22 2025
    Record received electronically from the Anaconda-Deer Lodge District Court and available with the Clerk.
  16. Aug 18 2025
    Record requested from the Supreme Court of Montana.
  17. Aug 12 2025
    SET FOR ARGUMENT on Wednesday, October 15, 2025.
  18. Aug 06 2025
    Brief amici curiae of Cato Institute, et al. filed.
  19. Aug 06 2025
    Brief amicus curiae of Montana Association of Criminal Defense Lawyers filed.
  20. Aug 06 2025
    Brief amici curiae of America's Future, et al. filed.
  21. Aug 06 2025
    Brief amici curiae of Project for Privacy & Surveillance Accountability, et al. filed.
  22. Aug 06 2025
    Brief amicus curiae of Rutherford Institute filed.
  23. Aug 06 2025
    Brief amicus curiae of Constitutional Accountability Center filed.
  24. Aug 06 2025
    Brief amici curiae of American Psychiatric Association, et al. in support of neither party filed.
  25. Aug 05 2025
    Brief amici curiae of National Association of Criminal Defense Lawyers, et al. filed.
  26. Aug 04 2025
    Brief amicus curiae of The LONANG Institute filed.
  27. Jul 30 2025
    Brief of petitioner William Trevor Case filed.
  28. Jul 30 2025
    Joint appendix filed. (Statement of costs filed)
  29. Jun 25 2025
    Motion to extend the time within which to file the briefs on the merits granted. The time for filing the joint appendix and petitioner's brief on the merits is extended to and including July 30, 2025. The time to file respondent's brief on the merits is extended to and including September 3, 2025.
  30. Jun 12 2025
    Motion for an extension of time within which to file the briefs on the merits filed.
  31. Jun 02 2025
    Petition GRANTED.
  32. May 28 2025
    Letter updating counsel of record information for respondents received.
  33. May 27 2025
    DISTRIBUTED for Conference of 5/29/2025.
  34. May 19 2025
    DISTRIBUTED for Conference of 5/22/2025.
  35. May 12 2025
    DISTRIBUTED for Conference of 5/15/2025.
  36. May 01 2025
    Rescheduled.
  37. Apr 16 2025
    DISTRIBUTED for Conference of 5/2/2025.
  38. Apr 15 2025
    Reply of petitioner William Trevor Case filed. (Distributed)
  39. Apr 02 2025
    Brief of respondent Montana in opposition filed.
  40. Feb 14 2025
    Motion to extend the time to file a response is granted and the time is further extended to and including April 4, 2025.
  41. Feb 12 2025
    Motion to extend the time to file a response from March 5, 2025 to April 4, 2025, submitted to The Clerk.
  42. Feb 03 2025
    Brief amicus curiae of Project for Privacy & Surveillance Accountability filed.
  43. Jan 06 2025
    Motion to extend the time to file a response is granted and the time is extended to and including March 5, 2025.
  44. Jan 03 2025
    Motion to extend the time to file a response from February 3, 2025 to March 5, 2025, submitted to The Clerk.
  45. Jan 02 2025
    Response Requested. (Due February 3, 2025)
  46. Dec 24 2024
    DISTRIBUTED for Conference of 1/10/2025.
  47. Dec 17 2024
    Waiver of right of respondent Montana to respond filed.
  48. Dec 04 2024
    Petition for a writ of certiorari filed. (Response due January 6, 2025)
  49. Oct 17 2024
    Application (24A361) granted by Justice Kagan extending the time to file until December 4, 2024.
  50. Oct 11 2024
    Application (24A361) to extend the time to file a petition for a writ of certiorari from November 4, 2024 to December 4, 2024, submitted to Justice Kagan.