Well, 'Treaties' are the usual legal construct that define a wide range of relationships between the Crown and a First Nation..
Unlike the rest of Canada, largely for historical and geographical reasons, BC has over 200 First Nations but only a handful of treaties in place.
Alot of the 'noisy' First Nations we see in the media are not supported by others, who continue to engage in quietly managed treaty making processes, which remains the duty of the Crown to conduct.