Suicide is a murder in which the perpetrator and the victim are the same person. In other words, when the perpetrator or the victim of the murder is the murderer himself, suicide is realized. In the current Islamic Penal Code of Iran (2012), suicide is not a crime. For this reason, being a deputy is not considered a crime. Because the criminality of the deputy is a metaphorical crime. This means that if the act committed is not a crime, then the deputy is not considered criminal, and none of them have any legal punishment. The fact that a person committing suicide does not have the ability to be punished is due to the fact that he no longer exists and is still alive. But it is possible to punish some people cooperated in suicide and prepared the ground for this act. There are evidences and documents that are the theoretical foundations of the viewpoint that considers assisting suicide as a crime.