Tribal courts are a step and a half away from tribal police.
Let's say it is 6:00 p.m. on a Friday afternoon and you are traveling on a road through Indian country. A vehicls light is out or you are exceeding the posted speed limit. Tribal cop pulls you over. In the course of events there is an unlawful weapon or firearm, per tribal law, discovered. You are cuffed and eventually taken to a holding cell. It could concievably take all weekend to determine you are not someone subject to tribal court jusrisdiction. Even if you are not such a subject, that doesn't end the case, as you MAY be subject to state law and handed over to a local LEO. In any case, you spent all of Friday evening, all day Sat. and Sun. and part of Monday morning in custody until a factual determination of your status was made. Hope you had a fun weekend. They, like any other LEO (which they are) were only doing their job.
I have a federal license to transport certain items across the USA that are pretty much barred or banned in many states and after acquiring said license from the Criminal Division of the DOJ I was warned (inclusion as a reference with the multiple pages of paperwork) to AVOID traveling through Indian Country whenever possible, Hmmm....I wonder why they'd bother with such a edict/warning? After due dilligence and research I do know why. Part of it is about total tribal jurisdiction when in Indian Country and if they had any sort of reason to inspect my load I could be in for a world of hurt either financially or time-wise or both. It really was an admonition so as to avoid messy situations based on previous histories of other like-kind transporters.
Of course, none of that was spelled out in detail (as they do not dispense legal advice even though they are the premiere law enforcement agency in the USA - go figure!). Just a general caution/warning.
I thought you were done
Well, let's take these one at a time.
Let's use Florida for your example, since we are in Florida....and let's pick, let's say the Seminole Indian Tribe...OK?
A vehicle light is out or you are exceeding the posted speed limit.
These are violations of Florida law.
The Seminole Indian tribe has entered into an agreement with the State of Florida, in accordance with 25 USC § 1321 (and 25 USC § 1772d) for Florida to assume both criminal and civil jurisdiction for all crimes committed in and on Indian lands by and against Indians and non-Indians alike: F.S. 285.16; Otherwise Federal law would apply (only to non-Indians.)
Florida Statutes 285.18 establishes the authority and powers of the Tribal Council and Law Enforcement agencies of the Tribe, in accordance with 25 USC § 476, specifically "To employ personnel to exercise law enforcement powers, including the investigation of violations of any of the criminal laws of the state occurring on reservations over which the state has assumed jurisdiction pursuant to s. 285.16.". This authority is granted solely based on the creation of a special improvement district within the state, not inherently because it's an Indian Tribe.
So the stop in your scenario is lawful.
In the course of events there is an unlawful weapon or firearm, per tribal law, discovered.
Tribal law is irrelevant in this case for both Indians and non-Indians as outlined above.
It could conceivably take all weekend to determine you are not someone subject to tribal court jurisdiction.
No. No one in Florida is under the jurisdiction of the Tribe in this situation.
They, like any other LEO (which they are) were only doing their job.
Which is specifically limited by both Federal and State law to enforcing State law. Therefore any such 'arrest'/detention would be unlawful.
So the DOJ 'warned' you to stay out of Indian lands because of the criminal activity of Indian Tribes - interesting. :uhoh: