Cape Verde Legislative Decree 4/2003 of 18 November 2003 - PENAL CODE
VOLUME I - GENERAL PROVISIONS
TITLE I - GUARANTEES AND APPLICATION OF PENAL LAW
Article 1
(Principle of legality)
1. No deed, whether an act of commission or of omission, may be deemed a crime unless a prior law has established that the deed in question constitutes a crime.
EDIT.