One of justifications in civil or criminal responsibility is self-defense. Toward this, complex of conditions is required that is pointed out in Art 156 of New Penal Code and their lack leads to responsibility. The jurisprudents recognize the principle of Ehsan as basis of legality of self-defense and jurists recognize this based on necessity of defender in doing this action and its being natural. In self-defense there is probability of damaging to accused person, defender and also the third party that can be divided into self-defense and defense of others. In self-defense it is possible that defender causes damages to third party in defending himself/herself. Or its cause, in case of intervention, third party has the right to refer to defender or accused person by virtue of rules of damage and causation. But in case of causation, the third party has right to refer to them only by virtue of rules of causation. In case of defending others, if the defense causes to damage to defender, the defender is rightful to refer to accused person by virtue of Art 306 Civil Code and refer to other factors, but if this defense leads to damages to third party, he/she has only right to refer to accused person.
