The last years of the second decade of the 21st century show a humanity in crisis. To unsolved problems such as war, poverty, and climate change, others that seemed to be solved or, at least, on which there were important advance, such as nationalist conflicts, xenophobe, and the struggle among religions are added to the previous ones. Before the issue of human rights, there are restrictive proposals, some of them already materialized in the United States, the European Union, Poland, Turkey, but also in Venezuela and Colombia.

The State of Law is in danger. Chieftainships, extreme right or extreme left movements threaten it. Populist or demagogic speeches hit the base of institutionalism. If institutions are in danger, the solution is to strengthen institutions. If our human rights, the only way we have is to vindicate them with determination.

Our role as researchers, academics, and jurists is to think and propose better societies, but also reject injustice, inequity, abuse of power, and everything that seeks to subjugate human rights and their guarantee. We are the conscience of the people and we cannot remain silent while the State of Law is being destroyed or manipulated for private purposes.

The purpose of knowledge is the common wellbeing. Science cannot be neutral when values on which it is based, such as human dignity, freedom or the right to doubt, pretend to be cut. Hence the importance of scientific activism that, in areas of knowledge such as ours, is very much obvious because it criticizes the powerful person and encourages the weak one.

Opinión Juridica is a showcase for scientists from all Latin American people make their investigations visible, which are not just data and information, but rather an attempt to understand our past and present, with the intention of achieving a better future.

We put, then, to the consideration of our readers, a group of articles from Brazil, Chile, Colombia, and Mexico; in Spanish, Portuguese, and English. We hope to be contributing to the construction of a better region.