Wisconsin 
  Lawyer
  Vol. 81, No. 11, November 
2008
Determining Tribal Jurisdiction Over Non-Tribe Members
The author provides seven principles 
to help determine tribal court jurisdiction over non-tribe members 
following the U.S. Supreme Court’s recent decision in Plains Commerce 
Bank applying the “Montana exceptions” to the general rule against a 
tribe’s lack of jurisdiction over nonmembers. 
by Brian L. 
Pierson
ccording to a recent report, casinos 
owned by Wisconsin’s 11 federally-recognized Indian tribes 
generated $1.335 billion in revenues during 2007.1 A large portion of tribal earnings are cycled 
through the state’s economy to pay for a vast array of goods and 
services needed to operate not only tribal casinos and other commercial 
enterprises but also tribal governments. In addition, tribe members are 
starting reservation-based2 businesses with 
increasing frequency. What court – tribal or state – has 
jurisdiction over disputes arising from these businesses? Attorneys 
representing parties doing business with tribes and tribe members need 
to know the jurisdictional principles that apply.
	In one of its final decisions of the 2007-08 term, the U.S. 
Supreme Court, in Plains Commerce Bank v. Long Family Land & 
Cattle Co.,3 held that the Cheyenne 
River Sioux Tribal Court lacked jurisdiction over a bank that had 
engaged in extensive dealings with a corporation owned by members of the 
Cheyenne River Sioux Tribe of South Dakota. The court relied on an 
analytic framework established in its 1981 decision in Montana v. 
United States.4 This article summarizes 
the Montana rule, describes the evolution of the rule in recent 
decades (culminating in the Plains Commerce Bank decision), and 
identifies the principles that currently determine tribal court 
jurisdiction. 
The Montana Rule and Exceptions
In Montana v. United States,5 a 
decision authored by Justice Potter Stewart, the U.S. Supreme Court held 
that the treaties between the United States and the Crow Tribe 
establishing the Tribe’s Montana reservation did not give the 
Tribe authority to regulate non-Indian fishing on the Big Horn River, 
which flows through the heart of the Tribe’s reservation. In 
rejecting the argument that the Tribe’s inherent sovereign 
authority supported its regulatory jurisdiction, the Court relied on 
Oliphant v. Suquamish Indian Tribe6 
and United States v. Wheeler,7 
decisions in which the Court had described tribes’ 
“diminished status as sovereigns”8 resulting from their incorporation into the 
United States and treaties with the federal government. Conceding the 
retention of certain inherent tribal powers,9 the Court denied that these went beyond 
“what is necessary to protect tribal self-government or to control 
internal relations.”10 
	The power to regulate nonmembers’ activities,11 the Montana Court declared, was 
beyond the tribes’ scope of authority, with two exceptions. First, 
even on fee lands within reservation boundaries, “[a] tribe may 
regulate, through taxation, licensing, or other means, the activities of 
nonmembers who enter consensual relationships with the tribe or its 
members, through commercial dealing, contracts, leases, or other 
arrangements.”12 Second, “[a] 
tribe may also retain inherent power to exercise civil authority over 
the conduct of non-Indians on fee lands within its reservation when that 
conduct threatens or has some direct effect on the political integrity, 
the economic security, or the health or welfare of the tribe.”13 
	The two Montana exceptions are strikingly broad. 
Consensual relationships supporting regulatory jurisdiction under the 
first Montana exception extend not only to the tribe but to any 
member of the tribe, and the scope of such relationships includes not 
only commercial dealings, contracts, and leases, but also “other 
arrangements.” Even in the absence of a consensual relationship, 
tribes could exercise regulatory jurisdiction under the second 
Montana exception provided only that the regulated conduct have 
“some direct effect” on the “economic security” 
or on the “health or welfare” of the tribe. These undefined, 
vague terms suggested a vast sphere of nonmember conduct subject to 
tribal jurisdiction. 
	The evolution of the Montana rule, reflecting a gradual 
conservative trend in the Court from 1981 to 2008, occurred in a series 
of decisions in which the Court, while never abandoning its 1981 
decision, qualified, amended, and fundamentally reinterpreted it to 
severely limit tribal jurisdiction. In its 1989 decision in Brendale 
v. Confederated Bands of the Yakima,14 
the Court, applying Montana, held that, except for isolated 
“land-locked” tracts surrounded by tribal lands, tribes 
could not zone reservation fee land owned by nonmembers. A tribe’s 
general interest in regulating reservation land use could not, according 
to the Court, support its jurisdiction under the second Montana 
exception.15 
  
		Brian L. Pierson, U.W. 1983, is an attorney 
with Godfrey & Kahn S.C., Milwaukee.
 
With Strate v. A-1 Contractors,16 
decided in 1997, the Montana rule assumed its modern form. The 
issue in Strate was tribal court jurisdiction over claims brought 
by tribe members against a nonmember arising from a motor vehicle 
accident on the Fort Berthold reservation. First, the Court extended the 
Montana rule, previously applied to tribal regulatory authority, 
to a tribe’s adjudicatory authority, holding that the scope of a 
tribe’s adjudicatory authority could not exceed the scope of its 
regulatory authority.17 Second, the Court 
effectively held that the exceptions to the general Montana rule 
really weren’t exceptions at all. Conceding that “[r]ead in 
isolation, the Montana rule’s second exception can be 
misperceived,” the Court declared as the “key” to its 
proper application the underlying principle that a tribe’s 
authority does not extend beyond what is necessary to protect tribal 
self-government or to control internal relations.18 In other words, circumstances that seemed 
to satisfy one of the two Montana exceptions still would not 
support tribal jurisdiction if the exercise of such jurisdiction would 
run afoul of the general Montana rule. Because the authority to 
adjudicate a motor vehicle dispute between individuals, even when tribe 
members are involved,19 was unnecessary to 
the Tribe’s right to govern its internal affairs, the Court 
concluded that jurisdiction was unwarranted. Finally, Strate 
established the jurisdictional equivalency between fee land within 
reservation boundaries and trust land20 
subject to a state right-of-way. 
	Two cases decided in 2001, Atkinson v. Shirley21and Nevada v. Hicks,22 solidified the limitations on the 
Montana exceptions announced in Strate. In 
Atkinson, the Court held that acceptance of tribal governmental 
services by a nonmember-owned hotel, on fee land within reservation 
boundaries, did not constitute a consensual relationship within the 
first Montana exception, and that a consensual relationship with 
a tribe would support regulatory jurisdiction only if the regulation 
arose out of a consensual relationship.23 
Hicks reinforced the post-Strate weakness of the second 
Montana exception, holding that tribal jurisdiction over a suit 
against state wardens arising from a search and seizure on reservation 
land was not necessary to tribal self-governance and must, therefore, be 
rejected.24 
The Plains Commerce Bank Case
Plains Commerce Bank (the bank), a bank owned by non-Indians and 
located in Hoven, South Dakota, had a long-term relationship with the 
Long Family Land and Cattle Company (the company), a South Dakota 
corporation owned by Cheyenne River Sioux Tribe (CRST) members Ronnie 
and Lila Long and located on the Tribe’s reservation. Beginning in 
1989, the bank made various loans to the company guaranteed by the 
Bureau of Indian Affairs. Many of the bank’s meetings with the 
company took place on the reservation. The non-Indian father of one of 
the company’s owners pledged fee land within reservation 
boundaries to secure one of the loans. When the company defaulted, the 
bank foreclosed on the land but later entered into new agreements under 
which the company received additional loans and an option to buy back 
the foreclosed property within two years. When the company proved unable 
to exercise the option, the bank sold the land to non-Indians. 
	The company sued the bank in the tribal court, alleging that the 
bank had discriminated against the company based on the race of its 
owners when it offered terms to the non-Indian purchasers that were more 
favorable than those offered the company. The tribal court found for the 
company and the Longs and awarded damages of $750,000. In a later 
supplemental judgment, the court ordered the bank to give the company an 
option to purchase the parcel it still occupied on the terms offered to 
the non-Indian purchasers. The CRST Court of Appeals affirmed. The bank 
brought a federal action challenging the tribal court’s 
jurisdiction. The district court, citing the first Montana 
exception, held that the bank’s consensual relationship with the 
company supported tribal court jurisdiction. The Eighth Circuit Court of 
Appeals affirmed.25 On June 25, 2008, the 
U.S. Supreme Court reversed.26 
	While previous cases involving tribal adjudicatory jurisdiction 
had focused on the second Montana exception relating to conduct 
on fee lands that “threatens or has some direct effect on the 
political integrity, the economic security, or the health or welfare of 
the tribe,” Plains Commerce Bank focused on the first 
Montana exception, which permits a tribe to exercise jurisdiction 
over “the activities of nonmembers who enter consensual 
relationships with the tribe or its members, through commercial dealing, 
contracts, leases, or other arrangements.”27 The company argued that the bank’s 
longstanding consensual relationship and the reservation locus of the 
land and many of the parties’ dealings supported tribal 
jurisdiction. In a 5-4 decision authored by Chief Justice Roberts, the 
Court held otherwise. 
	The Court’s decision relies on 1) a narrow construction of 
the “activities of nonmembers” for purpose of the first 
Montana exception, and 2) an emphasis on the tribe’s 
diminished sovereignty and Montana’s general rule against 
the exercise of sovereignty beyond what is necessary for 
self-government. With respect to the first point, according to Justice 
Roberts, the bank’s activities to which the plaintiffs objected 
were nothing more than the bank’s alleged discriminatory sale of 
fee land to a third party.28 Because a 
tribe has no authority to regulate the sale of fee lands, there could be 
no jurisdiction: “According to our precedents, ‘a 
tribe’s adjudicative jurisdiction does not exceed its legislative 
jurisdiction.’… We reaffirm that principle today and hold 
that the Tribal Court lacks jurisdiction to hear the Longs’ 
discrimination claim because the Tribe lacks the civil authority to 
regulate the bank’s sale of its fee land.”29  
	With respect to diminished 
sovereignty, Justice Roberts emphasized the primacy of 
Montana’s general rule over its exceptions: “[T]he 
tribes have, by virtue of their incorporation into the American 
republic, lost the right of governing persons within their limits except 
themselves.”30 Any assertion of 
tribal jurisdiction must be justified by its effect on tribal self-rule: 
“The logic of Montana is that certain activities on 
non-Indian fee land (say, a business enterprise employing tribal 
members) or certain uses (say, commercial development) may intrude on 
the internal relations of the Tribe or threaten tribal self-rule. To the 
extent that they do, such activities or land uses may be 
regulated.”31 While acknowledging 
that “noxious uses” of fee land might meet the standard,32 the Court held that a mere sale does not: 
“Once the land has been sold in fee simple to non-Indians and 
passed beyond the tribe’s immediate control, the mere resale of 
that land works no additional intrusion on tribal relations or 
self-government.”33 
	Although the key holding in the Court’s decision was the 
lack of tribal jurisdiction over fee land, Justice Roberts took the 
opportunity to narrow the Montana exceptions in other respects. 
Implicit in the first Montana exception is the notion that the 
described “consensual relationships” with the tribe or its 
members per se satisfy the principal rule, that is, they are 
relationships that affect the tribe’s right of self-government to 
a degree sufficient to support tribal jurisdiction. Justice Roberts 
suggested a stricter consent requirement: “Indian courts differ 
from traditional American courts in a number of significant 
respects…. And nonmembers have no part in tribal government 
– they have no say in the laws and regulations that govern tribal 
territory. Consequently, those laws and regulations may fairly be 
imposed on nonmembers only if the nonmember has consented, either 
expressly or by his actions. Even then, the regulation must stem from 
the tribe’s inherent sovereign authority to set conditions on 
entry, preserve tribal self-government, or control internal 
relations.”34 While conceding that 
the bank “may reasonably have anticipated that its various 
commercial dealings with the Longs could trigger tribal authority to 
regulate those transactions,” a question the Court expressly 
declined to decide, the Court insisted that there is no reason the Bank 
should have anticipated that its general business dealings with 
respondents would permit the Tribe to regulate the Bank’s sale of 
land it owned in fee simple.”35 
	In dicta, Justice Roberts also suggested a stricter 
standard for applying the second Montana exception, noting that 
“[t]he conduct must imperil the subsistence of the tribal 
community…. One commentator has noted that ‘the elevated 
threshold for application of the second Montana exception 
suggests that tribal power must be necessary to avert catastrophic 
consequences.’”36 The distance 
between the “catastrophic consequences” standard proposed by 
Justice Roberts and the “some direct effect” language used 
in the Montana case is obvious. 
Principles Governing a Tribe’s Jurisdication Over Nonmembers 
Today
Justice Stewart’s 1981 formulation of the Montana 
exceptions does not aptly describe the rules that the U.S. Supreme Court 
actually applies to matters of tribal jurisdiction today. Although the 
Court continues to insist on their continued vitality, the 
Montana exceptions are so encrusted with corollaries, 
interpretations, and qualifications as to be almost useless. Moreover, 
in view of the Court’s proclivity for ad hoc decision-making in 
situations in which tribal jurisdiction is concerned, any effort to 
identify rules likely to be applied in future cases is hazardous. The 
following principles are nonetheless offered as a rough summary of the 
current law, based on the Plains Commerce Bank case and the 
antecedent Strate, Atkinson, and Hicks decisions 
discussed above: 
	- For purposes of the first Montana exception, there must be a 
nexus between the nonmember’s consensual relation with a tribe or 
its members and the conduct being regulated or adjudicated. There is no 
tribal counterpart to state court “general jurisdiction” 
based on systematic contacts unrelated to the dispute at bar.37 
 
	- Consensual relationships with a tribe or tribe member squarely 
within the first Montana exception may nonetheless be 
insufficient to establish tribal jurisdiction in the absence of an 
identified sovereignty interest relating to self-governance. The 
tribe’s general interest in protecting the interests of its 
members does not satisfy this sovereignty interest requirement. 
 
	- A tribe’s right to regulate a reservation-based business 
enterprise that employs tribe members, a reservation-based commercial 
development, or other nonmember activity depends on whether these 
activities “intrude on internal relations” or 
“threaten tribal self-rule.”
 
	- Whether a nonmember “has consented either expressly or by his 
actions” to tribal jurisdiction is relevant to the court’s 
authority to exercise its jurisdiction. The reasonableness of a 
nonmember’s anticipation of tribal regulation is pertinent to this 
inquiry. It follows that if the tribe enacts and publishes commercial 
laws governing a nonmember’s dealings with members, the nonmember 
might reasonably anticipate being regulated by the tribe, thus 
satisfying the Plains Commerce Bank “consent by 
action” requirement and supporting the case for tribal 
jurisdiction. 
 
	- For a tribe to establish jurisdiction over nonmembers on fee land 
under the second Montana exception, it will have to show that the 
conduct being regulated imperils the subsistence of the tribal 
community. As the Strate decision illustrates, a tribe’s 
desire to protect its members from nonmembers’ reckless operation 
of motor vehicles on the reservation will not meet this standard.
 
	- Except in extraordinary circumstances, such as an isolated parcel 
of nonmember fee land surrounded by tribal land or an activity that 
poses a grave risk to the tribal community, a tribe cannot zone fee land 
or otherwise regulate nonmember uses of fee land. 
 
	- Although a tribe’s jurisdiction over nonmembers on trust land 
is broader than on fee lands, trust lands over which a tribe has ceded a 
landowner’s right of control, for example, by granting a right of 
way, are the equivalent of fee lands. Moreover, a tribe still will 
probably be unable to exercise jurisdiction over the conduct of state 
officials, even on trust land, with respect to actions within the 
state’s authority. 
 
Conclusion
As the U.S. Supreme Court decisions make clear, there is a 
presumption against tribal court jurisdiction over nonmembers and, in 
the absence of a congressional delegation (a rare thing), the burden is 
on a tribe to show that one of the Montana exceptions, as 
construed by the Court, applies. There is no reason to believe that the 
general trend restricting the Montana exceptions will not 
continue for the foreseeable future. Tribes that enact and publish legal 
codes to support the sovereignty basis for their regulation of 
nonmembers increase nonmembers’ reasonable expectation of tribal 
jurisdiction. In the long term, tribes’ willingness to model their 
courts on state and federal courts may allay the fears of 
nonmembers and the Supreme Court alike and lead to broader tribal 
jurisdiction.  
Endnotes 
Wisconsin Lawyer