Photos: various authors, see here
The demarcation of an Indigenous Land (TI) is intended to guarantee the Indians’ right for the land. It should establish the real extension of the area under Indian possession, assuring the protection of the demarcated limits and keeping invaders away.
Since the Indian Statute was approved in 1973, this formal recognition has had to follow certain administrative procedures, in accordance to Article 19 of the Statute. These procedures stipulate the stages of the long demarcation process. They are regulated by an Executive decree and, with the years, have gone through many alterations. The most recent one was defined by Decree 1,775, of January, 1996.