Introduction:

In 2022 a new Cuban Penal Code incorporated a new requirement of non-imputability. This article approaches to the problem of how to interpret and apply this new non-imputability formula to the psychiatric examination of defendants and has the objective of analyzing it in forensic interpretation. It shows the academic and publisher’s criticism made of the previous Cuban non-imputability formula and the complementary precept of the health ministry for forensic interpretation. The new non-imputability formula, elaborated with psychiatrists' assistance during a legislative process to surpass those previous criticisms, is exposed and analyzed. This new different penal requirement put under obligation to change in forensic interpretations and methods to identify criminal non-imputability, pretenders and to be a clue controlled by judges. A new forensic interpretation criterion was elaborated and submitted to groups of psychiatrist experts, to obtain a normative proposition that considered in possible non-imputability of the person who committed the crime during a diagnosed psychotic disorder that was the certain direct determinant of the fact. The psychiatric report may show all mentioned below and, in general view, according to other penal codes, these criteria can be applied in the forensic expertise relative to non-imputability.