those tribal laws are no joke and they are strictly enforced, more so if you're a white person. i spent a lot of time on the hopi reservation in arizona in the past and if you don't know the laws you're f***ed. taking a photo while on the reservation without a permit will get you taken in and jailed by tribal police. do it over a holiday and you'll sit in that cell until that holiday is over and someone comes in to set your bail. i had quite a talk with the tribal chief at that time cause i was spending the thanksgiving holiday on the res. yeah, they celebrate and shut down over thanksgiving just like the rest of the country. the chief gave me permission to take photos but couldn't get me the permit in hand in time for me to have it on me. he said go ahead, take your photos, be warned, the police will probably stop if they see you looking for that permit. i said i can tell them you said it was ok, right? oh sure...he's laughing now...but you'll still spend 3 days in jail...laughing harder now. i swear, i never saw so many police vehicles in my life in the middle of no where. the tribal police force were all over that highway. and yes, they were in full sized blazers cruising the hiways and biways of their reservation.