BOOK I
GENERAL PART
TITLE II
ON CRIME
CHAPTER II
FORMS OF CRIME
Article 27. Cases of joint commission
In the event of joint commission, the attempt of a person shall not be punishable, if the same voluntarily desists from proceeding with commission of the crime, or hinders or voluntarily desists in realizing its result, or earnestly endeavors to hinder either, even if other coparticipants proceed with execution or commission of the act.
EDIT.