19.—(1) The judge advocate shall not be bound at a hearing by any enactment or rule of law relating to the admissibility of evidence in proceedings before courts of law.
(2) The judge advocate shall make a record of the hearing unless a court recorder is in attendance.
20. A person who is called to give evidence shall not, except with the consent of the judge advocate, be present at a hearing while not under examination.
21. A witness at a hearing or any other person whose duty it is to attend before the judge advocate at the hearing shall be entitled to the same immunities and privileges as a witness before the High Court in England and Wales.
22.—(1) The judge advocate shall announce his decision and the reasons for it at the end of any hearing and record that decision in writing.
(2) The court administration officer shall serve copies of the decision on the applicant and, if the applicant is not the relevant person’s commanding officer, the commanding officer.