One of the tools that may be used is a registry. There's a registration of every member from that community who is registered under what they call the Indian registry. You could cross-check the registry with people in the know, the chief and the council, since they—if you want to use the term—call the shots in the community. They know all the members. If people work with the leadership to identify a process, I think that's the way to go.
On December 5th, 2006. See this statement in context.