Part One. General Provisions
Section II. Participants in the Criminal Court Proceedings
Chapter 7. Participants in the Criminal Court Proceedings on the Side of the
Defence
Article 47. The Accused
4. 6) to bear evidence and to express himself in his native tongue or in a language, of which he has a good command;
7) to make use of an interpreter's services free of charge ;
Language
Rights during trial - interpretation and translation
EDIT.