The binding legal principles established are: (1) Section 189(1) of the CPA, which applies to section 205 examinations, must be construed so that if answering any question would infringe or threaten to infringe any of the examinee's Chapter 3 rights, this constitutes a 'just excuse' for refusing to answer unless the compulsion to answer would constitute a justified limitation under section 33(1) of the interim Constitution. (2) The presiding officer at a section 205 examination must determine whether an examinee has a 'just excuse' for refusing to answer, taking into account whether answering would infringe the examinee's constitutional rights. (3) An examinee at a section 205 examination is not an 'accused person' for purposes of section 25(3) fair trial rights because the examination does not constitute a criminal trial, does not result in conviction, and the imprisonment sanction under section 189 is coercive process, not criminal punishment. (4) The 'trial' required by section 11(1) (right not to be detained without trial) does not necessarily require all the procedural safeguards of section 25(3) in every context; it requires fair procedure appropriate to the circumstances, including an impartial judicial arbiter. (5) All courts, including magistrates' courts, must construe section 205 having due regard to the spirit, purport and objects of Chapter 3 rights under section 35(3) of the interim Constitution.