S v Nyembe (JPV 2011/250) [2013] ZAGPJHC 126; 2014 (1) SACR 105 (GSJ) (29 May 2013)

85 Reportability

Criminal Law

Brief Summary

Criminal law — Trial — Multiple charges of kidnapping, rape, robbery, and attempted murder — Evidence — DNA analysis as sole evidence implicating accused — Sufficiency of evidence and chain of custody — Accused found guilty on all counts. The accused faced 14 counts including kidnapping, rape, robbery, and attempted murder, arising from three separate incidents in Chiawelo. The State relied on DNA evidence linking the accused to the crimes, which was not disputed. The accused denied the charges and presented an alibi. The court held that the DNA results, corroborated by similar fact evidence, proved the accused's guilt beyond reasonable doubt.

Comprehensive Summary

Summary of Judgment

1. Introduction

The matter was a criminal trial in the South Gauteng High Court, Johannesburg, in which the accused, Sibusiso Blessing Nyembe, was arraigned on an indictment comprising multiple serious offences arising from three separate incidents. The prosecution was conducted by the State.

The accused pleaded not guilty to all counts and elected not to provide a plea explanation. During the course of the trial, a set of formal admissions was recorded by consent under section 220 of the Criminal Procedure Act 51 of 1977, including admissions directed at the collection, sealing, transmission, receipt, and forensic processing of biological specimens, as well as the correctness of certain medical documentation.

The prosecution led evidence from nine witnesses. The accused testified in his own defence and called no further defence witnesses. The dispute ultimately narrowed to a single question, namely the identity of the perpetrator of the offences, as the commission of the underlying crimes was treated as common cause.

The general subject-matter concerned three incidents in which the complainants were kidnapped, sexually assaulted, and robbed in the Chiawelo area, and the State’s reliance on DNA analysis as the only evidence directly implicating the accused.

2. Material Facts

The charges arose from three separate incidents occurring over a period of less than three months, each in Chiawelo, Soweto, and each involving early-morning attacks on women on their way to work.

In the first incident, on 24 November 2007, the complainant E R was kidnapped, raped, robbed, and stabbed with intent to kill. In the second incident, on 12 January 2008, the complainant S C was kidnapped, threatened by the pointing of an object resembling a firearm, raped (on multiple counts), and robbed. In the third incident, on 16 February 2008, the complainant F T was kidnapped, raped (on two counts), and robbed.

The complainants testified about the attacks. Their evidence on what occurred was not disputed, and none of them was able to identify the assailant. The court noted striking similarities across the three incidents, including the time of day, the location near an open veld adjacent to a school, the use of a weapon (a firearm according to one complainant and a knife according to the others), demands for money and personal belongings, and the progression from robbery to sexual assault.

The State’s crucial evidence concerned DNA testing and results. Through formal admissions under section 220, it was accepted that genital specimens were collected from the complainants during medical examinations, placed in evidence collection kits, sealed, transported to and received by the Forensic Science Laboratory in Pretoria, and thereafter examined and analysed. A control sample in the form of a blood sample was taken from the accused on 14 March 2012. The forensic comparison yielded that the accused’s DNA profile matched the DNA results obtained from the complainants.

The accused’s response to the State’s case was a bare denial and the raising of an alibi. He denied any knowledge of, or involvement in, the offences. The accused further testified that at the time he lived in Senoane, across the road from Chiawelo.

The court recorded that the evidence concerning the DNA process and results was not challenged, and that the chain of the DNA evidence was likewise not challenged.

3. Legal Issues

The central legal question for determination was whether the State had proved, beyond reasonable doubt, that the accused was the perpetrator of the charged offences, in circumstances where the crimes themselves were not in dispute and none of the complainants identified the attacker.

The dispute primarily concerned the application of legal standards of proof to the facts, including the evaluation of (a) the probative value and reliability of DNA evidence given the admitted chain of custody and unchallenged analysis, and (b) the proper approach to an accused’s alibi when weighed against the State’s incriminating evidence.

To the extent that the court relied on the similarities between the three incidents, the evaluation also entailed an assessment of how that body of evidence operated within the overall “mosaic” of proof when considered together with the DNA results.

4. Court’s Reasoning

The court identified identity as the sole issue. It accepted that the commission of the crimes was common cause and directed its analysis to whether the accused was shown to be the offender.

On the State’s case, the court treated the DNA evidence as decisive. The forensic expert described the STR-DNA analysis system and testified that, across nine STR loci, the accused’s DNA profile matched the DNA results derived from the complainants’ specimens. The expert further provided statistical evidence describing the rarity of a coincidental match. The court noted that this evidence was not challenged in cross-examination.

In addition, the court emphasised that the chain of custody and the correctness of the forensic process had not been challenged. It recorded that, given the admissions and the lack of dispute, it was accepted that the swabs were properly sealed, referenced, transported, received, and analysed, and that the comparison with the accused’s control blood sample occurred without contamination or irregularity. Against this body of evidence, the court characterised the accused’s response as a bare denial, which it regarded as insufficient to displace the probative force of the DNA results.

In dealing with the alibi, the court applied the approach set out in the authorities it cited, namely that alibi evidence must not be considered in isolation but must be assessed in the context of the evidence as a whole. The court referred to the principle that if an alibi is accepted as reasonably possibly true, it would follow that there is a reasonable possibility that the State’s version is mistaken, because both versions cannot simultaneously be correct. The court also adopted the “mosaic of proof” approach, requiring a detailed examination of components of the evidence followed by an overall assessment of the combined effect.

Applying these principles, the court concluded that the DNA match was corroborated by the similarity of the three incidents, which occurred within a limited period, in the same area, at the same time of day, and involved similar conduct by a single perpetrator. The court also noted the accused’s evidence placing him as resident close to the area where the offences were committed. In the face of the unchallenged DNA evidence and the contextual similarities, the court rejected the accused’s bare denial and alibi as false and found that the State had proved identity beyond reasonable doubt.

5. Outcome and Relief

The court found the accused guilty on counts 1 to 14, as charged.

No costs order arose from the judgment as presented, and the excerpt provided did not include a separate sentencing order within the text reproduced.

Cases Cited

S v Maqhina 2001 (1) SACR 241 (T).

S v Liebenberg 2005 (2) SACR 355 (SCA).

R v Biya 1952 (4) SA 514 (A).

S v Trainor 2003 (1) SACR 35 (SCA).

Crossberg v S [2008] ZASCA 13; [2008] 3 ALL SA 329 (SCA).

Sithole v S (868/11) [2011] ZASCA 85 (31 May 2012).

Mosephi and others v R LAC (1980–1984) 57.

S v Hadebe and others 1998 (1) SACR 422 (SCA).

S v Mbuli 2003 (1) SACR 97 (SCA).

S v Mogale [2011] ZAGPJHC 57 (18 March 2011).

S v Nzimande 2003 (1) SACR 280 (O).

Seyisi v The State (117/12) [2012] ZASCA 144 (28 September 2012).

Legislation Cited

Criminal Procedure Act 51 of 1977, section 220.

Rules of Court Cited

No rules of court were cited in the judgment as provided.

Held

The court held that the State proved beyond reasonable doubt that the accused was the perpetrator of the offences. This conclusion was based primarily on unchallenged DNA evidence showing a match between the accused’s DNA profile and DNA results obtained from specimens collected from all three complainants, together with the acceptance that the chain of custody and forensic analysis were properly established by admissions and were not disputed.

The court further held that the accused’s alibi and denial, when assessed in the context of the totality of the evidence, could not reasonably be true and fell to be rejected. The similarities between the three incidents were treated as corroborative context supporting the inference that the same perpetrator committed the offences.

LEGAL PRINCIPLES

The judgment applied the principle that where an accused raises an alibi, it must be evaluated together with all the evidence, rather than in isolation. If the alibi is reasonably possibly true, it necessarily follows that there is a reasonable possibility that the State’s version is mistaken, because both versions cannot simultaneously be correct.

The judgment further applied the evaluative approach that a court must critically examine each component of the evidence but must ultimately “step back” and assess the mosaic of proof as a whole, ensuring that doubts arising from isolated consideration are tested against the total evidential picture.

On the treatment of DNA evidence, the judgment proceeded on the basis that where the collection, sealing, transmission, receipt, and forensic analysis of biological samples are properly established (including by formal admissions) and are not challenged, and where the expert evidence on the match is uncontroverted, such evidence may provide a sufficient basis to prove identity beyond reasonable doubt, particularly when supported by contextual corroboration drawn from the circumstances of the offences.