In the field of Evidence Law the relation between truth and law has been a somewhat non- debated topic in the past years. It is a given that such a connection exists and, it is understood as the notion of the ascertainment of the truth of disputed questions of fact through legal evidence. The thesis that I have reconstructed in this paper has been presented by Prof. Jordi Ferrer who grounds the connection between truth and law in the role of (...) the legal system as a tool for guiding the behavior of the governed. I call this thesis the theory of the structural clause of truth. In this paper I shall present a possible reconstruction of this theory, I shall raise two objections against it and I shall present five possible interpretations of the relation between truth and law. (shrink)