PART ONE
GENERAL PROVISIONS
CHAPTER XI
DEFENCE
Section 138.
[Choice of Defence Counsel]
(2) Other persons may be engagedadmitted only with the approval of the court. In and, in cases where the assistance of defence counsel is mandatory and the person chosen is not among the persons who may be appointed as defence counsel, such person may additionally be admitted as counsel of the accused’s own choice only together with one who may be so appointed .
Fair trial standards
Rights during trial - counsel of accused's choosing
EDIT.