Masters Degrees (Public Law)
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Browsing Masters Degrees (Public Law) by Subject "Admissible evidence -- South Africa"
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- ItemThe admissibility of unconstitutionally obtained evidence : issues concerning impeachment(Stellenbosch : Stellenbosch University, 2005-05) Niesing, Gysbert; Van der Merwe, S. E.; Stellenbosch University. Faculty of Law. Dept. of Public Law.ENGLISH ABSTRACT: The law regarding the admissibility of unconstitutionally obtained evidence for impeaching the accused's testimony is still undeveloped. This work discusses three of the options available to South African courts and the difficulties inherent in each. The first is to follow the approach of the Supreme Court of the United States. The American approach regarding the exclusion of evidence from the case in chief is strict. Courts are not bestowed with a discretion to admit unconstitutionally obtained evidence: Unless one of the accepted exceptions exist, a court must exclude unconstitutionally obtained evidence in order to deter unconstitutional behaviour by the authorities. Deterrence of unconstitutional police behaviour is however no longer considered controlling when cross-examining the accused. Unconstitutionally obtained evidence - both real and testimonial communications - is therefore admissible for impeachment purposes despite being excluded from the case in chief. The rationale is to prevent the accused giving perjurious testimony in the face of the prosecution's inability to impeach the accused's veracity in the usual manner. The application of the American approach in South Africa has however already been rejected in S v Makhathini.1 The second possibility is for South African courts to follow the position of the Supreme Court of Canada in R v Calder.2 The admissibility of impeachment evidence in Canada - as with evidence in chief - is based on the effect of its admission of the repute of the administration of justice. However, evidence excluded from the case in chief will only in very rare circumstances be admitted in cross-examination of the accused. Finally, the option suggested by this thesis, is to continue the trend started by s 35(5) of the South African Constitution, which has already been applied with great success in cases where the admissibility of unconstitutionally obtained evidence in the case in chief is in issue. Section 35(5), like the Canadian s 24(2) it bears some resemblance to, gives courts a discretion to exclude unconstitutionally obtained evidence on the basis of unfairness to the accused or the effect admission will have on the administration of justice. It is submitted in this thesis that, because of the interlocutory nature of a ruling on admissibility, this approach adapts easily to the admission of limited purpose evidence such as impeachment evidence: If the admission of the unconstitutionally obtained evidence, regardless of whether it was previously excluded from the case in chief, renders the trial unfair or would otherwise be detrimental to the administration of justice it must be excluded.