Before 2005 homicide sentences in Papua New Guinea varied widely from judge to judge. The Supreme Court used one wife-killing appeal to impose order.
Manu Kovi v The State [2005] PGSC 34; SC789
Supreme Court, Waigani — Injia DCJ, Lenalia and Lay JJ, 31 May 2005. SCRA 51 of 2003, appeal against sentence.
What happened
Mr Kovi killed his wife on a moving PMV bus in Port Moresby, in daylight and in full view of other passengers, stabbing her repeatedly. He pleaded guilty to wilful murder. He told the court that her conduct had “stimulated my anger” and that the killing was through emotional stress and passion. The National Court sentenced him to life imprisonment.
What was argued
Appearing in person, Mr Kovi said the trial judge had not given weight to his guilty plea, his remorse and his clean record, and asked for a term of years. The State said the killing, in the heart of the capital on public transport, was among the most serious and that life was within range.
What the Court decided
The Court found no error in the sentencing discretion and dismissed the appeal. But it went further. Reviewing some forty earlier decisions, it noted the need for consistency in sentencing for homicide and set out, in a schedule, suggested tariffs for the three offences.
Category 1 (wilful murder 15 to 20 years; murder 12 to 15; manslaughter 8 to 12): a plea, ordinary cases, mitigating factors with no aggravating factors, no weapon, little or no pre-planning, minimal force, no strong intent to kill or to do grievous bodily harm. In manslaughter, killings under emotional stress or de facto provocation in a domestic setting, or where a pre-existing condition such as an enlarged spleen contributed to death.
Category 2 (20 to 30; 16 to 20; 13 to 16): trial or plea, mitigating and aggravating factors, some pre-planning, a weapon used, a vicious attack, a strong desire to kill or to do grievous bodily harm.
Category 3 (life; 20 to 30; 17 to 25): special aggravating factors, mitigation reduced to insignificance by the gravity of the offence, a brutal killing in cold blood, an innocent or defenceless victim, dangerous weapons such as a gun or axe, pre-meditation, killing accompanied by another serious offence.
Category 4 (death; life; life): the worst case, with special aggravating factors, no extenuating circumstances and no mitigation of any weight.
The killing fell within the third category of wilful murder, for which life imprisonment is the tariff. The sentence was confirmed.
Did it make new law?
Kovi did not overrule anything. It built on Goli Golu v The State [1979] PNGLR 653, Ure Hane v The State [1984] PNGLR 105 and Lawrence Simbe v The State [1994] PNGLR 38, and on dozens of National Court sentences it surveyed. What was new was the structure: a single table that placed all three homicide offences on comparable scales. The Court described the tariffs as “suggested”, but they have been applied as the starting point in the National Court and the Supreme Court for twenty years.
Why it matters
Sentencing submissions begin with the category. Counsel on both sides argue about which factors are present and which category they produce; the range follows.
Appeals are measured against the range. A sentence within the applicable range is rarely disturbed under the Norris test. A sentence outside it invites the inference of error.
The categories are guidelines, and the Court has said that sentencing for particular kinds of killing may be better informed by later developments. In 2026 it held that the Kovi guidelines are “not informative” for sorcery-accusation-related killings, for which a range of 30 to 40 years now applies.
What it does not decide
Kovi concerns the three homicide offences only. It does not fix tariffs for sexual offences, robbery or grievous bodily harm, which have their own guideline decisions. It does not address the death penalty’s constitutional status, and following the 2022 repeal of the death penalty the top of the wilful murder scale is now life imprisonment.
Recent cases applying it
Kovi is cited in at least seventeen Supreme Court judgments since 2019. Among the most recent:
- Api v The State [2026] PGSC 80; SC2924 — the sentencing judge placed a bush-knife murder in the 20 to 30 year range; the Court analysed which category 2 and 3 factors were actually present.
- Waraningi v The State [2026] PGSC 71; SC2912 — 16 years for murder fell at the lower end of category 2; review dismissed.
- Geruye v The State [2026] PGSC 64; SC2907 — 18 years for manslaughter upheld by reference to the category 3 range of 17 to 25 years.
- Awas Junior v The State [2026] PGSC 93; SC2927 — Kovi held not informative for a sorcery-accusation killing; life imprisonment replaced with 36 years.
Sources
- Manu Kovi v The State [2005] PGSC 34; SC789 (Injia DCJ, Lenalia and Lay JJ, 31 May 2005)
- Criminal Code (Chapter 262) — ss 19, 299, 300, 302
- Goli Golu v The State [1979] PGSC 9; [1979] PNGLR 653; Ure Hane v The State [1984] PGSC 4; [1984] PNGLR 105; Simbe v The State [1994] PGSC 18; [1994] PNGLR 38
- Api v The State [2026] PGSC 80; SC2924; Waraningi v The State [2026] PGSC 71; SC2912; Geruye v The State [2026] PGSC 64; SC2907; Awas Junior v The State [2026] PGSC 93; SC2927
The tariff schedule in the judgment is set out as a table. The ranges given here are taken from the categories as they appear in the schedule and as quoted in later decisions.
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