Chapter 2
Common Provisions for the Suspect and the Accused
Article 20
Interpreter
The suspect or the accused who does not know the language used during the investigations and the trials or who is deaf, dumb or deaf and dumb shall be given an interpreter for, at least, explaining to him the charge and the indictment and for assisting him during the interrogations and confrontations.
Language
Rights during trial - interpretation and translation
EDIT.