This work has been the target of the problems of justification in criminal law and esp of self-defense or to investigate relief pursuant to § 3 of the Criminal Code. First, individual justification and its relationship to self-defense or to discuss emergency aid. Then deepened discussed the conditions of self-defense and to the limits of self-defense. Then, when the conditions are given for excluding the self-defense. In the last chapter of the specific problems of emergency will be screened. First, the function, then the restriction of relief. The ratio of relief to state security and defense, and finally the limitations of the emergency.