Extensive obiter on multiple issues: (1) The proper interpretation of section 102(1) referral provisions - referrals are only competent where the constitutional issue may be decisive for the case still before the referring court; (2) The interpretation of "freedom" in section 11(1) - Ackermann J advocated a broad interpretation as residual freedom rights subject to strict limitation analysis, while Chaskalson P and others argued for a narrower interpretation focused on physical integrity and closely analogous freedoms; (3) The relationship between enumerated and unenumerated rights - the existence of specific enumerated rights does not preclude residual protection under broader provisions like section 11(1); (4) Standing under section 7(4) - divergent views on whether persons not yet charged/accused can challenge evidentiary provisions, with majority ultimately finding standing either under section 7(4)(b)(i) (own interest) or section 7(4)(b)(v) (public interest); (5) The applicability of foreign jurisprudence (particularly Canadian, American, German) to South African constitutional interpretation - while instructive, differences in constitutional text and structure require careful adaptation rather than mechanical transplantation; (6) The distinction between direct and derivative use of compelled testimony - direct use should be automatically excluded, derivative use requires contextual evaluation by trial court; (7) Comparative analysis of different limitation tests in section 33(1) - rights subject to "necessary" test receive higher protection than those subject only to "reasonable" test; (8) The nature of constitutional invalidity - whether objective or subjective, prospective or retrospective.