§ 15
Criminal liability of attempt
1) The penalties provided for intentional acts shall not only apply to a completed act, but also to an attempt and to any participation in an attempt.
2) The act shall be deemed attempted as soon as the perpetrator puts his decision to carry out or direct another person (§ 12) to carry out the act into execution by way of an action immediately preceding the carrying out of the act.
3) An attempt and any participation in an attempt shall not be punishable if completion of the act was not possible under any circumstances, for lack of personal qualities or circumstances that the law requires the person acting to fulfil or given the type of the action or the type of the object against which the act was perpetrated.
3. In accordance with this Statute, a person shall be criminally responsible and liable for punishment for a crime within the jurisdiction of the Court if that person:
(f) Attempts to commit such a crime by taking action that commences its execution by means of a substantial step, but the crime does not occur because of circumstances independent of the person's intentions. However, a person who abandons the effort to commit the crime or otherwise prevents the completion of the crime shall not be liable for punishment under this Statute for the attempt to commit that crime if that person completely and voluntarily gave up the criminal purpose.