C N M v Republic [1985] KECA 56 (KLR)
The bottom line
#Kenya's Court of Appeal replaced a manslaughter conviction with a special verdict of insanity because the trial judge never properly guided assessors on mental-state questions.
What this practically means
#Executive summary
#Key legal issues
#The standard and burden of proof on the defence of insanity
The burden of proving insanity lies on the accused on a balance of probability, a lighter burden than that resting on the prosecution.
Because a person is presumed sane until the contrary is shown, an accused asserting insanity bears the burden of displacing that presumption. That burden is not as heavy as the prosecution's burden; the question is decided on the balance of probability, namely whether it is more likely that, due to mental disease, the accused did not know what he was doing or that it was wrong, so that he could not have formed the intent to kill.
Duty of the trial judge to leave the three possibilities to the assessors
The trial judge's failure to set out the three possibilities of insanity, sanity, or diminished appreciation of consequences was a non-direction rendering the verdict unsafe.
Following Ellis v Republic, the judge should have directed the assessors on all three possibilities. The record showed neither that the judge addressed the assessors on these possibilities nor even recorded his summing up. Given the psychiatric evidence and the assessors' opinions that something was wrong with the appellant's brain, had the direction been given, the assessors would probably have found insanity on a balance of probability.
Status of assessors' pronouncements
Assessors give opinions orally, not verdicts, and those opinions carry special importance where the accused's mental state is in doubt.
The court corrected the trial judge's loose use of the word 'verdict' for the assessors' findings, citing section 322(1) of the Criminal Procedure Code. Their opinions were treated as of special importance because the appellant's mental state was in doubt; all three assessors considered the appellant had something wrong with his brain, supporting the finding of insanity.
Legal principles established
#- Where an accused raises insanity, the burden of proving insanity rests on the accused on a balance of probability, not to the standard required of the prosecution.
- A trial judge must direct assessors on the three possibilities arising from evidence of mental illness: insanity, sanity, or sanity accompanied by failure to appreciate the full consequences of the act.
- Assessors in Kenya give opinions orally rather than verdicts, under section 322(1) of the Criminal Procedure Code.
- Where insanity under section 166(1) of the Criminal Procedure Code is established, the court must enter a special finding and report the case for the President's orders under section 166(2).
Court orders
#- 1.Set aside the appellant's conviction for manslaughter contrary to section 205 of the Penal Code
- 2.Set aside the sentence of 12 years' imprisonment
- 3.Substitute a special verdict that the appellant is guilty of the act charged but was insane when he did it, in accordance with section 166(1) of the Criminal Procedure Code
- 4.By virtue of section 166(2) of the Code, report the case for the orders of His Excellency the President
- 5.Order the appellant to be detained in Kamiti Prison, where further specialist treatment in custody as is necessary may be arranged
- On appeal from
- High Court at Nairobi
- Jurisdiction invoked
- First appellate jurisdiction over a High Court criminal conviction (Criminal Appeal No. 116 of 1985)
Key timeline
#Practical implications
#Frequently asked questions
#Cite this brief
#Cite this brief
Caselaw, "C N M v Republic [1985] KECA 56 (KLR)", Case Analysis (1985). Criminal Appeal No. 116 of 1985. Source: https://new.kenyalaw.org/akn/ke/judgment/keca/1985/56/eng@1985-12-11
Suggested citation format for research notes or client memos. Always verify the original judgment before relying on any point.