The reward justice is a model that brakes in Colombia and has antecedents in the figure of U.S the plea bargaining. In the reward justice finds two discourses about the truth in the penal law that inscribes in many philosophical-juridical conceptions; by one side, find the consensualism of true that pretends to approach a participative in agreements in equal conditions; by the other side, finds a systematic model of guaranties that takes the truth epistemologically like a correspondence. This paper tries to make an exam of the reward justice under the light of the both philosophicaljuridical conceptions to clarify if this could or not to inscribe in any, or if, by the other way, has his own true conception.