Here is the unpublished opinion in Big Horn County Electric Cooperative v. Big Man.
Briefs here.
Lower court materials here.

Here is the unpublished opinion in Big Horn County Electric Cooperative v. Big Man.
Briefs here.
Lower court materials here.
Here:
Briefs are here.
One of my favorite people, Melody McCoy, a Cherokee citizen and Michigan alum, argued for the respondents. Izhaadaa giizhigowande!
Continue readingHere is the opinion in Herrera v. State of Wyoming:
State SCT cert stage briefs:
ResponseObjection – Petition for review
Prior post here.
Here:
Lower court materials here.
From SCOTUSBlog, here is “Court unanimously holds that Indian tribes retain the inherent power to police non-Indians.”
Decision and materials here.
Here is the unanimous opinion from Justice Breyer.
An excerpt:
The question presented is whether an Indian tribe’s police officer has authority to detain temporarily and to search a non-Indian on a public right-of-way that runs through an Indian reservation. The search and detention, we assume, took place based on a potential violation of state or federal law prior to the suspect’s transport to the proper nontribal authorities for prosecution.
We have previously noted that a tribe retains inherent sovereign authority to address “conduct [that] threatens or has some direct effect on . . . the health or welfare of the tribe.” Montana v. United States, 450 U. S. 544, 566 (1981); see also Strate v. A–1 Contractors, 520 U. S. 438, 456, n. 11 (1997). We believe this statement of law governs here. And we hold the tribal officer possesses the authority at issue.
Another excerpt:
More broadly, cross-deputization agreements are difficult to reach, and they often require negotiation between other authorities and the tribes over such matters as training, reciprocal authority to arrest, the “geographical reach of the agreements, the jurisdiction of the parties, liability of officers performing under the agreements, and sovereign immunity.” Fletcher, Fort, & Singel, Indian Country Law Enforcement and Cooperative Public Safety Agreements, 89 Mich. Bar J. 42, 44 (2010).
Here are the briefs and other background materials.
Here.
Previous post on this litigation here.
Here:
19-1414 Amicus Brief of NationalIndigenousWomensResourceCenter
19-1414 Indian Law Scholars Cooley Brief
19-1414 tsac Former U.S. Attorneys
19-1414 tsac Members of Congress
19-1414 tsac The Cayuga Nation
Final NCAI-Tribal Governments Amici Brief-US v Cooley 1-15-21
Other Cooley materials are here.
Here are the merits briefs:
Here are the amicus briefs supporting petitioner:
19-1414 Amicus Brief of NationalIndigenousWomensResourceCenter
19-1414 Indian Law Scholars Cooley Brief
19-1414 tsac Former U.S. Attorneys
19-1414 tsac Members of Congress
19-1414 tsac The Cayuga Nation
Final NCAI-Tribal Governments Amici Brief-US v Cooley 1-15-21
Here are the amicus briefs supporting respondent:
19-1414 Amici Curiae Brief Ninth Circuit Federal Defenders
National Association of Criminal Defense Lawyers Amicus Brief
Here are the cert stage materials:
Respondent Brief in Opposition to Petition for a Writ of Certiorari
Here are the Ninth Circuit materials:
Here are the district court (D. Mont.) materials:
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