(e) A defendant shall have the right through his counsel to present evidence at the trial in support of his defense, and to cross examine any witness called by the prosecution.
(f) A defendant may apply in writing to the tribunal for the production of witnesses or of documents. The application shall state where the witness or document is thought to be located and shall also state the facts to be proved by the witness or the document and the relevancy of such facts to the defense. If the tribunal grants the application, the defendant shall be given such aid in obtaining production of evidence as the tribunal may order.
Article V
The tribunals shall have the power
(a) to summon witnesses to the trial, to require their attendance and testimony and to put questions to them;
(b) to interrogate any defendant who takes the stand to testify in his own behalf, or who is called to testify regarding another defendant;
(c) to require the production of documents and other evidentiary material;
(d) to administer oaths;
(e) to appoint officers for the carrying out of any task designated by the tribunals including the taking of evidence on commission;
(f) to adopt rules of procedure not inconsistent with this Ordinance. Such rules shall be adopted, and from time to time as necessary, revised by the members of the tribunal or by the committee of presiding judges as provided in Article XIII.