فاعل معنوی از جمله اصطلاحاتی است که در کتب حقوقی ب هعنوان یکی از مرتکبین جرم زیاد به چشم میخورد. با این وجود در تعریف این مفهوم بین
>Perpetration-by-means is one of the expressions that in seen in legal books as one of Perpetrators of crime. According to this definition, there is no agreement between criminal lawyers in different legal systems and it has been never discussed the principles and criminal liability accurately. In this study, it is attempt to describe different concepts of Perpetrator-by-means and explain its justified means, analyse it foundation and criminal responsibility and is determined in this way legal dimensions of Perpetration-by-means in Iran criminal law.Key words Perpetration-by-means, Main guilty, Criminal responsibility, Punishment.