BOOK I-GENERAL PART
TITLE II-THE ACT
CHAPTER II-FORMS OF CRIME
Article 27
Complicity
1. He who, intentionally or in whatever form, materially or morally helps other person to perform an intentional act, is punishable as accomplice.
2. The penalty applicable to the accomplice is the one which is fixed for the principal, specially mitigated.
EDIT.