Since ancient times until today the concepts of minority and democracy have adopted different meanings, becoming both ambiguous concepts. However, it is possible to state that as of the configuration of the democratic State, the majority rule stops being a simple numerical assessment and becomes a dual protection principle, like that of majority and minority, in the means that both the activity of the most like that of the least, as well as the public and private agents are submitted to this respect and guarantee of the rights, values, and principles consecrated in the Constitution of each State.

The work then, shows some of the changes that the constitutional jurisdiction has experimented in relation to the protection of the minorities and of the respect of the democratic and plural principle consecrated in the Constitution. Thus, the constitutional justice of today is a justice that has been implemented in its smooth running and in its procedures, mechanisms which allow the demonstration of the opinions of the minorities.