SPECIAL PART
SECTION 8. PRETRIAL PROCEEDINGS OF CRIMINAL CASES
CHAPTER 28. INTERROGATION AND CONFRONTATION
Article 206. Interrogation of the witness
Prior to the interrogation the investigator ascertains himself in the identity of the witness, informs the latter for which case he has been summoned and warns about the duty to relate everything known about the case, as well as gives instructions against refusal or avoidance to testify, about the established criminal responsibility for perjury. The witness is advised that he is not bound to give incriminating testimony against himself, his spouse or close relatives. After that, the investigator clarifies the relations between the witness and the suspect, the accused, the injured person and starts the interrogation.
Witnesses' rights - national proceedings
EDIT.