When Is There Enough Evidence to Convict for Murder? Lessons from Rabi Haruna v. State.

 

When Is There Enough Evidence to Convict for Murder? Lessons from Rabi Haruna v. State

Case: Rabi Haruna v. State [2022] 16 NWLR 1 (SC) Court: Supreme Court of Nigeria.

Can someone be convicted of murder without a post-mortem report? Without the murder weapon ever being recovered? Without a single eyewitness to the actual killing? These questions sat at the heart of a case that travelled from a Magistrate Court in Kaduna all the way to the Supreme Court of Nigeria — and the answers the apex court gave are worth understanding, whether you're a law student, a litigator, or simply curious about how criminal evidence really works in practice.

How It All Began

The story starts with the death of a man named Musa Bello, who was struck twice on the head with a pestle while he lay asleep in his room. He was rushed to hospital but did not survive. The person accused of the attack, Rabi Haruna, was first brought before a Magistrate Court — but because the charge she potentially faced (culpable homicide punishable with death) was too serious for that court to handle, she was held in custody while prosecutors prepared their case. Once the Directorate of Public Prosecution issued its legal advice, she was formally arraigned before the High Court of Kaduna State on a single count under Section 221 of the Penal Code Law of Kaduna State, 1991.

She pleaded not guilty.

What Happened at Trial

At the High Court, the prosecution's case rested on two witnesses and four exhibits. One witness was the deceased's elder brother, who testified that he was alerted by the deceased's second wife and rushed to the scene, where he found his brother lying in a pool of blood. The other was the investigating police officer, who confirmed the death, described attempts to recover the pestle used in the attack (unsuccessfully), and explained that an autopsy was never carried out because the deceased's relatives objected — the body was instead released for burial under Islamic rites after photographs were taken.

Crucially, the accused had given a confessional statement at the police station, admitting to striking the deceased twice on the head with a pestle while he slept. At trial, she did not call any witnesses of her own; her defence simply rested on the prosecution's case.

Despite this, the trial judge acquitted her. The reasoning was that without expert medical evidence — either given orally or in a written report — establishing the cause of death, the prosecution had not proven its case beyond reasonable doubt. No autopsy, no conviction, the trial court effectively held.

The Pendulum Swings: The Court of Appeal

Unhappy with the acquittal, the state appealed. The Court of Appeal disagreed with the trial court's reasoning, set aside the acquittal, and convicted the accused, sentencing her to death. Now it was the accused's turn to be aggrieved — and the matter proceeded to the Supreme Court.

The Arguments Before the Supreme Court

The single question the Supreme Court had to resolve was whether the Court of Appeal was right to overturn the trial court and find that all the elements of culpable homicide punishable with death had, in fact, been proven beyond reasonable doubt.

For the accused, counsel argued along four lines:

• She had disputed making the confessional statement, so relying on it over inconsistent prosecution evidence was improper.

• No medical evidence existed to confirm the cause of death — and a medical report matters because it can rule out alternative causes or exonerate an accused person entirely.

• The alleged weapon — the pestle — was never recovered or tendered as evidence.

• There was no proof of intent to kill; merely striking someone with a pestle does not, by itself, establish that death was intended.

For the State, counsel pushed back on each point:

• The confessional statement was properly admitted, and the accused's only real objection at trial concerned a disputed thumbprint — not the statement's voluntariness or content.

• The eyewitness testimony corroborated the confession, since it showed the injury inflicted by the accused was what led to death.

• There was no material contradiction in the prosecution's witnesses.

• Absence of a medical report didn't undermine the fact that sufficient evidence existed to show the accused caused the death.

• Striking someone on the head with an object as heavy as a pestle, while they slept, could not reasonably be done without an intention to kill or cause grievous harm.

In reply, the accused's counsel maintained that the prosecution had called no credible witness to directly establish that she caused the death, and urged the Court to treat the Court of Appeal's reasoning — and the precedents the State relied on — as merely persuasive rather than binding, since the facts of those cases differed from this one.

How the Supreme Court Reasoned Through It

Who carries the burden, and how heavy is it?

The Court reaffirmed a foundational principle: in criminal trials, the burden of proving guilt rests squarely on the prosecution, to the standard of proof beyond reasonable doubt. But — and this is a point often misunderstood — "beyond reasonable doubt" does not mean beyond every conceivable doubt. Absolute certainty is not something the law expects, because it is not something human proof-gathering can realistically deliver.

The three-part test for culpable homicide

To secure a conviction, the Court held, the prosecution must establish three things, and all three must coexist:

1. That the person died.

2. That the accused caused that death.

3. That the accused intended to kill, or intended to cause grievous bodily harm.

Miss even one of these, and the prosecution has failed. The Supreme Court then worked through each element in turn.

Element one: Did Musa Bello actually die?

Here, the Court made an important clarification. Yes, death can be proven through an autopsy report, or through witnesses who knew the deceased and can confirm they saw the body or attended the burial. But an autopsy is not mandatory in every case. A conviction can stand even without recovery of a body, provided there is clear, cogent, and unequivocal evidence that the person was killed. The requirement for a formal medical identification only becomes critical where the identity of the body is genuinely in doubt and no other evidence resolves that doubt. That wasn't the situation here — there was ample evidence that Musa Bello had died, and because the accused chose not to challenge this evidence at trial, it stood as credible and reliable.

The Court also addressed minor inconsistencies between witness accounts, noting something worth remembering: witnesses describing the same event will rarely give identical accounts, and that's actually a good sign, not a bad one. Perfect uniformity between two witnesses often suggests coaching or rehearsal. What matters is whether the inconsistencies go to the substance of the case — and here, they didn't.

Element two: Did the accused cause the death?

This is where the case turns most interesting. The absence of a medical report was, again, treated as undesirable but not fatal to the prosecution's case. Where the cause of death is obvious — for instance, where a lethal weapon caused an injury and death followed with no intervening cause — courts can infer causation without medical evidence. Medical opinion, the Court noted, is ultimately just that: an expert opinion, not the only route to proof.

Similarly, the fact that the pestle itself was never recovered didn't defeat the prosecution's case. What mattered was that an intentional, violent assault to a vital part of the body — the head — had occurred, and that such an act carries the obvious risk of death. Where someone dies from a violent blow to a vulnerable area like the head, courts can properly infer that the injury caused the death, particularly where death follows quickly and there's compelling evidence linking the injury pattern to the weapon described.

On this point, the Court also dismissed an argument that the prosecution's failure to produce a medical report — despite supposedly having access to one — should trigger the evidential presumption under Section 167 of the Evidence Act, 2011 (which allows courts to presume that withheld evidence would have been unfavourable to the party withholding it). Since the defence never formally demanded the report at trial through a subpoena or notice to produce, this argument couldn't be raised for the first time on appeal.

Element three: Was there intent to kill or cause grievous harm?

The Court found this element satisfied too. Striking a sleeping person twice on the head with a pestle is not the kind of act that happens by accident or without appreciation of the likely consequences. The fact that the attack occurred at night, while the victim slept, pointed to premeditation — reinforcing the conclusion that death was the intended, or at least foreseeable and accepted, outcome of the act.

Does the prosecution need an eyewitness?

One further argument raised by the defence was that the prosecution failed to call the deceased's first wife as a witness. The Supreme Court used this as an opportunity to restate a broader principle: guilt in a criminal trial can be established in three ways — through a confessional statement, through eyewitness testimony, or through circumstantial evidence. None of these is mandatory to the exclusion of the others. There is no legal rule requiring an eyewitness in every murder case; circumstantial evidence, where sufficiently compelling and pointing to only one conclusion, is enough on its own.

The Final Verdict

Taking the whole picture together — the confessional statement, the corroborating witness testimony, and the absence of any credible challenge from the defence — the Supreme Court held that the trial court had failed to properly evaluate the evidence before it, leading to a wrongful acquittal that the Court of Appeal was right to correct. The Supreme Court affirmed the Court of Appeal's conviction and dismissed the appeal.

Key Takeaways

• A missing autopsy report doesn't automatically sink a murder case. Where the cause of death is obvious from the surrounding evidence, courts can infer it without a formal medical opinion.

• A missing weapon isn't fatal to the prosecution either. What matters is proof that a violent, intentional act to a vital body part caused the death.

• Minor inconsistencies between witnesses can actually strengthen credibility, since identical accounts often raise suspicion of coaching.

• There is no fixed formula for proving guilt. Confession, eyewitness testimony, and circumstantial evidence are all independently sufficient routes — the prosecution doesn't need all three, or even two.

• Objections raised for the first time on appeal generally won't succeed — if a party wanted a document produced at trial, they needed to formally ask for it then, not argue about its absence later.

This case is a useful reminder that criminal evidence law isn't just about box-ticking — it's about whether the totality of the evidence, taken together, removes reasonable doubt. And sometimes, that totality speaks for itself.