La valoración racional de la prueba

This research-based article highlights the need to establish an analysis for an assessment of the rational probative value of evidence. This analysis starts with the description of the kinds of evidence and the different schemes for assessing rational probative values that have ever existed, as of the system of Legal proof (tarifa legal or prueba legal), in which the regulation for the weight of the evidence is performed by the law instead of by a judge, up to the more contemporary Scientific proof, including more flexible methods to weight evidence such as Firm conviction (intima convicción or prueba plena), Free conviction or rational proof (libre convicción), and one that blends both experience and logic, Healthy criticism (sana crítica). Likewise, rationality as general criteria and the rational assessment for the weight of evidence executed by the judge as a procedural confirmation method are also discusse