The Law 13.964, of December 24, 2019, known as the Anti-Crime Package, introduced into the current Brazilian Code of Criminal Procedure the institution called the judge of guarantees, aiming to provide greater impartiality in judgment throughout all phases of criminal prosecution, as there will be one judge for the inquisitorial phase (police/investigation) and another judge for the procedural phase, thus improving the accusatory system in the legal framework. This institution gained special prominence after the judgment by the Supreme Federal Court (STF) of the four Direct Actions of Unconstitutionality (ADIs 6298, 6299, 6300, and 6305). From these rulings, it was defined what is constitutional and what is unconstitutional in Law No. 13.964/2019, as well as being considered a mandatory rule establishing a deadline for the implementation and operation of the judge of guarantees throughout the country. The issue to be analyzed will be whether the Brazilian legal system is prepared for the implementation of the judge of guarantees? The general objective will be to understand the structural, budgetary, and staffing difficulties, as well as the legislative competence dialectic regarding the implementation of the judge of guarantees in the Brazilian judicial system, for its effective implementation within the deadline established by the Supreme Federal Court. The specific objectives are to assess the obstacles and difficulties in the physical structures of courts and judicial divisions, point out budgetary difficulties, and the challenges related to the number of court and division staff. The methodology will follow the deductive method, using bibliographic research, with an exploratory objective, qualitative approach, basic nature, and systematic literature review, encompassing academic articles, books, and legal documents.