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 46. The Suspect
4. 2) to give explanations and evidence concerning the suspicion moved against him or to refuse giving the explanations and the evidence. If the suspect agrees to give evidence, he/she has to be warned that his/her evidence may be used as proof in a criminal case, and likewise in the event of his/her subsequent denial of this evidence, save for the instance provided for by Item 1 of Part Two of Article 75 of this Code ;
Rights during investigation - self incrimination
Rights during investigation - remain silent
Rights during trial - unsworn oral or written statement in defence
EDIT.