This work will report the period of Getlio Vargas (1930 the 1945), having as main focus the New State (1937 the 1945), when the police force was one of the supports in the maintenance of the dictatorship, against democratic freedoms, that is, the institutionalized police violence. Being always the question: It will be that our diverse police forces still have the DNA of the violence? Or still it has a perception of legitimated impunity in the New State? Brazil constantly is denounced in reports of the ONU for illegal actions of the diverse police forces, including it arbitrary torture and arrests, beyond being the .causing greaters of violent deaths, beyond the slowness or inefficiency of the judiciary system. E, that if the violence is today not sponsored by the State through its agents, if still has a historical perception of impunity of the causers of the police violence. We know that currently Brazil is a Democratic State of Right and if this affirmation has its pleas, for it not to guarantee all the plenitudes of the rights of the citizen, that include: health, education and security among others. The pleas cannot deny, however, arcabouo legal-constitutional of the country, represented mainly for the Federal Constitution of l988, nominada for the constituent Ulisses Guimares of ' ' Constitution cidad' ' , that in its to understand it would take care of the democracy fully. The violence is inherent all the ditatorial State, either it of any ideological shade, right or left, and until the inexact ones. The violence if becomes necessary for the maintenance of its ' ' prerrogativas' ' of State. What it is good for the country it is not necessarily for the people, therefore in the vision of the controllers of a ditatorial state, the people does not know or he does not have conditions to define what it is good for proper itself.