 Tribal authority over non-members beyond what is necessary to protect tribal self-government is not available without express congressional delegation, since delegation did not exist the tribal court had no jurisdiction.Finally, the tribal court has no authority to regulate state officers in their official capacities, stating that tribal law hinders state law no more than state law inhibits federal law.The Court applied "Montana", which asserts that Tribes lack civil jurisdiction over conduct of nonmembers on lands where they lack the right to exclude unless (1) the nonmember entered a "consensual relationship with the Tribe or its members" or (2) the nonmember's "conduct threatens or has some direct effect on the political integrity, the economic security, or the health or welfare of the tribe."