The presumption of innocence is one of the guiding principles of criminal procedure in the country, which has the highest normative status when foreseen in the federal Constitution (article 20-B-I). However, in order to transfer it to its recognition to the sanctioning administrative law - specifically to the disciplinary administrative law - is not a simple matter, since its contours are diffuse. Hence, the approach of its content and its scope can be facilitated if we turn to comparative law, which has been broadly studied.