CHAPTER XVI
EXAMINATION IN A COURT SESSION
Part Three
Normal Trial Procedure
Article 177
(1) if a defendant or witness does not understand the. Indonesian language, the judge/chairman of the session shall appoint an interpreter who under oath or pledge shall promise to truly interpret all that has to be interpreted.
(2) if a person is not allowed to serve as witness in a case, he shall not be allowed also to act as interpreter in that case.
Fair trial standards
Rights during trial - interpretation and translation
EDIT.