The proportionality of the punishment with the amount of the responsibility of criminal  in the committed crime is a rational principle in the Diyat. This means that the amount of personal responsibility in paying Diya for a more serious crime should be more than for a milder crime. The implementation of this principle requires the preparation of preliminary documents that Islamic jurisprudence and legal issues along with medical science can determine the most appropriate punishment based on the degree of responsibility for crime. Bone injuries are one of the subjects of the Diat book, and the implementation of the principle of proportionality in it requires a precise definition of bone injuries and the scope of each of the listed bones and injuries. Although in Fiqh, the Diya of some bone injuries is mentioned, but with the advancement of science, many bone injuries have been mentioned in medical science with the help of imaging, which reconciliation of medical injuries with Fiqh and law requires the determination of the scope of concept bones and the definition of its injuries mentioned in the narrative texts as The subject of rulings and then is matching the injuries in medical science with it. According to the law of criminal procedure, the investigator must obtain the opinion of a forensic doctor or invite them as the case for examine injuries, marks and signs of beating and physical injuries.
In the narrative-fiqhal texts as well as legal texts, the ruling is referred to as the bone, which includes all its parts. While referring to the forensic medicine procedure in issuing certificates, we see some decisions being made that are different from what is mentioned in jurisprudence and legal texts. Also, in medical science, nearly 20 types of bone injuries are considered, but bone injuries are mentioned in Fiqh with much more limited titles. The comparison of bone injuries from a medical point of view with Fiqh has been done in a tabular format which can be used in the judgment to punish according to the amount of life responsibility by determining the severity of the injury based on the injuries mentioned in the Fiqh as an indicator, which can be used by the judge in issuing judgments or investigations or examining Actively in forensic medical certificates.
This article, in a library form, examines how to adapt the scope of bone inclusion and the concept of its injuries from a medical point of view with Fiqh and jurisprudence as a prelude to the implementation of the principle of proportionality of punishment with the amount of responsibility in compensation o bone injuries.