CLINTON CHUKWUMA KANU V. ATTORNEY-GENERAL, IMO STATE (2019)

Background

This appeal concerned the conviction of Clinton Chukwuma Kanu for armed robbery under section 1(2)(a) of the Robbery and Firearms (Special Provisions) Act, Cap. 398, Laws of the Federation of Nigeria 1990. The prosecution alleged that, on 10 April 1992, the appellant and two other accused persons attacked the premises of Christ Apostolic Church, Ndiokoroji, in Imo State. The robbers allegedly used firearms and other offensive weapons, stole money and valuables from persons at the premises, and inflicted injuries on Prophet Louis Onukwube, who subsequently died.

The High Court of Imo State convicted the appellant and imposed the applicable sentence. The Court of Appeal, Owerri Division, affirmed the conviction and sentence. The appellant then appealed to the Supreme Court, arguing principally that the prosecution had not proved the charge beyond reasonable doubt, that the identification evidence was unreliable, that his defence of alibi had not been properly investigated, and that the lower courts had failed to evaluate the conflicting evidence adequately.

Issues

1. Whether the prosecution proved all the ingredients of armed robbery beyond reasonable doubt.
2. Whether the appellant raised a sufficiently particularised defence of alibi at the earliest opportunity and whether the police were under a duty to investigate it.
3. Whether the Court of Appeal was correct to defer to the trial court’s evaluation of the evidence.
4. Whether PW1, Rev. Darlington Ike, was properly treated as an eyewitness and whether the identification evidence against the appellant was reliable.

Ratio Decidendi

The majority allowed the appeal. The Supreme Court restated that the prosecution bears the burden of proving the guilt of an accused person beyond reasonable doubt, and that this burden remains static and does not shift. The prosecution may prove a criminal charge through eyewitness testimony, a voluntary confessional statement, or circumstantial evidence. In an armed robbery case, it must establish: first, that a robbery occurred; second, that the robbery was carried out while the offender or offenders were armed with an offensive weapon; and third, that the accused person participated in the robbery.

The Court emphasised that identification evidence must be scrutinised with particular care. Relevant considerations include the circumstances in which the witness saw the suspect, the length of the observation, the lighting conditions, and the witness’s opportunity for close observation. Where an eyewitness does not mention the alleged culprit at the earliest opportunity, a court must be cautious before accepting a later identification unless a satisfactory explanation is provided.

On alibi, the Court explained that the defence is intended to show that the accused was elsewhere when the offence occurred and therefore could not have participated in it. An accused who relies on alibi should raise it at the earliest reasonable opportunity and provide sufficient particulars, including the place where he was, the persons with him, and the relevant time. Once adequate particulars are supplied, the police have a duty to investigate. The accused is not required to prove the alibi; the ultimate burden of disproving it remains on the prosecution.

Court Findings

Peter-Odili JSC, delivering the lead judgment, found serious weaknesses in the prosecution’s case. The principal identification evidence came from PW2, who claimed to have recognised the appellant during the nighttime incident with the aid of a torchlight. However, PW2 did not make a statement identifying the appellant until approximately 43 days after the event. The Court considered the delay unexplained and regarded the resulting identification as doubtful.

The evidence of PW1 was also found problematic because he was not an eyewitness to the robbery as presented in the material evidence. In addition, there were material inconsistencies concerning whether the incident occurred on 9 or 10 April 1992. The medical evidence concerning the deceased’s cause of death also did not clearly support the prosecution’s account that the deceased died from injuries inflicted during the robbery. These inconsistencies, viewed cumulatively, created reasonable doubt about the appellant’s identity and participation.

The majority further held that the appellant had raised alibi in his statement to the police by stating that he had returned to his village and gone to bed after discussions with family members. Although the statement did not contain every detail later supplied at trial, the majority considered that the prosecution could not rely on its failure to investigate the alibi, particularly because the evidence fixing the appellant at the scene was not sufficiently strong. The trial court had also failed to properly weigh the evidence of the appellant and his supporting witnesses against that of the police investigators. Mere assertions that one set of witnesses was believed and another disbelieved did not amount to proper evaluation.

Muhammad AG CJN and Ariwoola JSC agreed with the lead judgment. Eko JSC separately stressed that the prosecution had presented materially inconsistent accounts of the date and circumstances of the robbery. He held that PW2’s evidence was unreliable and that the evidence of the appellant’s mother and cousin supporting the alibi had been rejected on improper grounds. Sanusi JSC dissented. He considered PW2 a credible eyewitness who had previously known the appellant and had identified him with the assistance of the torchlight. He also held that the appellant had failed to give sufficient particulars of his alibi at the earliest opportunity and that the police had nevertheless made reasonable efforts to investigate it.

Conclusion

By majority decision, the Supreme Court allowed the appeal, set aside the judgment of the Court of Appeal and the appellant’s conviction and sentence, and ordered his acquittal and discharge.

Significance

The decision reinforces the constitutional and evidential requirement that criminal convictions must rest on proof beyond reasonable doubt. It demonstrates that delayed or inconsistent eyewitness identification, unexplained contradictions about essential facts, and inadequate evaluation of an alibi may make a conviction unsafe. It also clarifies that appellate courts may interfere with concurrent findings where those findings are perverse, founded on material contradictions, or demonstrate a failure to evaluate the evidence as a whole.