The main objective of this research is to analyze the obligation of special testimony as advance evidence in the face of children and adolescents who are victims or witnesses of sexual violence, in view of the emergence of Law nº 13.431 of 2017. The Protected Eavesdropping Law, as it became known, is the first Brazilian micro-system aimed at curbing violence against children and adolescents, guiding the public power in order to ensure a more humanized, quick and qualified service, by providing for a single statement (mandatory advance proof production) for crimes concerning situations of violence against children and adolescents, through its article 11. In this context, what are the challenges, limits and possibilities facing the implementation of the single hearing of children and adolescents in sexual crimes? It is therefore a matter of analyzing the reality of the change in the paradigm of victim-witness protection with the advent of Law nº 13.431/2017. Therefore, the methodological proposal of this work starts from a bibliographic and data survey, of an eminently exploratory and explanatory nature, about the violating State, the aspects of victimization, the importance of the victim's and/or witness's word, in addition to the right to be forgotten, in its fundamental articulations.