The Law Library of Congress recently added information for
tribes within Mexico to their
Indigenous Law Portal.
In addition to tribes in the United States and Canada, the portal now includes
62 tribes in 18 states in Mexico.
For
more information, see their
blog post. Since July
2014, the library has been building the portal by adding content from their
historical law collections as well as linking directly to current sources of
information when that is available (including the National Indian Law Library’s
Tribal Law Gateway).