Mkhize v S

On 10 July 2009, Bongani Cebekhulu (the deceased), suspected of car hijackings and armed robberies, died during interrogation at the Esikhawini detective branch offices. He had been arrested on 8 July 2009 at Jozini Police Station and transferred through various police stations without injury. The five appellants, members of a Special Task Team dealing with armed robberies and car hijackings, were present during the interrogation. Medical evidence showed the deceased sustained severe injuries including blunt force trauma to the neck, bruising on the head, face, neck, chest, and a fractured neck and trachea, which caused death within 3-5 minutes. When senior officers arrived, all five appellants were present in the room and collectively explained that the deceased fell off a chair after learning his criminal associate had died. The appellants were charged with murder, convicted of culpable homicide in the Regional Court, and sentenced to three years correctional supervision plus five years wholly suspended imprisonment. On appeal, the KwaZulu-Natal High Court confirmed the convictions but increased the sentence to seven years imprisonment with two years suspended, resulting in five years direct imprisonment. The appellants appealed to the Supreme Court of Appeal with special leave.

• Whether the State proved the appellants' guilt beyond reasonable doubt based on circumstantial evidence
• Whether the doctrine of common purpose was correctly applied to convict all appellants of culpable homicide
• Whether the appellants had a legal duty as police officers to prevent the assault on the deceased
• Whether the failure of the appellants to testify could strengthen the prima facie case against them
• Whether the failure to cross-examine State witnesses on contested issues entitled the court to draw adverse inferences
• Whether the sentence imposed by the trial court was disturbingly inappropriate
• Whether the High Court misdirected itself in altering the sentence

The appeal was dismissed. The convictions for culpable homicide based on common purpose were confirmed. The sentence of seven years imprisonment, of which two years was suspended for five years (effective five years direct imprisonment), was upheld.

The binding legal principles established are: (1) Police officers who are present during an assault on a suspect have a legal duty to intervene and prevent it; failure to do so constitutes an unlawful omission that can ground criminal liability; (2) When all elements of common purpose are established (presence, awareness, intention to make common cause, and acts of association), each participant's culpability (intention or negligence) must be determined independently to distinguish between murder and culpable homicide; (3) For culpable homicide based on common purpose, it must be proved that a reasonable person in the position of each accused would have foreseen the possibility of death and taken steps to prevent it; (4) A cross-examiner must put all contested points to witnesses; failure to do so entitles the court to accept unchallenged evidence as correct and to draw adverse inferences; (5) An accused's failure to testify can strengthen a prima facie State case to proof beyond reasonable doubt when suspicious circumstances are proved which the accused, if innocent, could reasonably be expected to explain; (6) Silence and failure to identify the actual perpetrator among a group of police officers who were present during a fatal assault will not shield them from conviction based on common purpose; (7) Correctional supervision is inappropriate for serious violent offenses, particularly those involving abuse of police power.

The Court made several non-binding observations: (1) The court noted that circumstantial evidence is not inherently less cogent than direct evidence and may in some cases be more convincing; (2) The court commented that allowing police officers to escape conviction by maintaining silence when more than one is present during a fatal assault would amount to granting them a licence to assault suspects at will; (3) The court observed that the appellants' silence was maintained out of misguided belief that failure to identify the correct perpetrator would exonerate all of them; (4) The court noted that when comparing aggravating circumstances with personal circumstances of offenders, the former may render the latter insignificant; (5) The court emphasized that as police officers, the appellants had a duty to protect the public and treat suspects with dignity, and that the deceased had a constitutional right not to be assaulted; (6) The court stated it was necessary to send a clear message that society cannot tolerate lawlessness and violence on the part of police officers.

This case is significant in South African criminal jurisprudence for several reasons: (1) It clarifies the application of the doctrine of common purpose in cases where police officers are present during an assault but the actual perpetrator cannot be identified; (2) It establishes that police officers have a legal duty to prevent assaults occurring in their presence and to truthfully report what happened, and failure to do so can ground criminal liability; (3) It reinforces the rule in Browne v Dunn regarding the duty of cross-examiners to put contested issues to witnesses, and the consequences of failing to do so; (4) It demonstrates how an accused's failure to testify can strengthen a prima facie State case to proof beyond reasonable doubt when the accused has exclusive knowledge of the facts; (5) It illustrates the proper use of circumstantial evidence in criminal cases; (6) It confirms that correctional supervision is inappropriate for serious violent offenses committed by police officers, particularly where there is no remorse and a need for general deterrence; (7) It sends a strong message that police violence and unlawful interrogation methods will not be tolerated and will attract substantial custodial sentences.