When does the clock start? Guilty plea discounts and late disclosure
The guilty plea discount is no longer a matter of impression. Since 29 June 2025 it has been a table. Sections 9H to 9K of the Sentencing Act 2002, inserted by s 10 of the Sentencing (Reform) Amendment Act 2025, cap the reduction by reference to the procedural milestone at which the plea is entered.
The scale in s 9H(1) is:
1. At the first reasonable opportunity — 25%
2. At the case review hearing — 20%
3. At or before the first trial callover — 15%
4. 20 or more working days before the scheduled trial start — 10%
5. Less than 20 working days before the start, or during the trial — 5%
Section 9I lets the court depart upwards from items 2 to 5, but never above 25 per cent. Section 9J requires the court to state how the scale was applied and to give reasons for any departure. Section 9Q caps total personal mitigation at 40 per cent of a sentence of imprisonment.
Two threshold points. The amendments apply only to offences committed, in whole, on or after 29 June 2025 (Schedule 1AA, cl 26). Offending that straddles that date stays under the old law. And ss 9H to 9K apply to sentences of imprisonment, and to other sentence types only where the court considers it appropriate (s 9G).
The problem the scale creates
The scale rewards the early plea. But counsel cannot sensibly advise a client to plead to an offence until counsel knows the Crown can prove it. In a homicide, that usually means waiting for the pathologist. Fitness-to-plead issues will also need to be considered where relevant.
Read literally, the table punishes a defendant for waiting. Item 1 is the only escape. It offers 25 per cent for a plea entered “at the first reasonable opportunity”, and it is the one item in the table not tied to a court date.
R v Tumaialu [2026] NZHC 2750 may be one of the first decisions to work through that tension. The offending occurred on the very day the new provisions commenced, so it is among the earliest sentencings to which the scale could apply at all.
The facts
Mr Tumaialu stabbed Ivan Fifita once during a fight on the deck of an Ōtāhuhu boarding house on 29 June 2025. Mr Fifita died in hospital that night. A forensic pathologist later established that the single wound had penetrated the left side of the liver and reached the heart’s aortic valve.
The pathologist’s evidence was not disclosed until after the case review hearing, one month before the first trial callover on 4 March 2026. Mr Tumaialu pleaded guilty at the second callover on 22 April 2026, some six months before his scheduled trial.
On the face of the table, that placed him in item 4: a maximum of 10 per cent.
What Jagose J held
The Court did not stop at the table.
First, Jagose J treated item 1 as available independently of the trial milestones. A plea at the first reasonable opportunity attracts up to 25 per cent whenever it is entered. Applying Hessell v R, that is when an accused pleads as soon as he or she has had the opportunity to be informed of all implications of the plea.
Second, he used s 9K(a), which entitles the court to consider whether and when the defendant received disclosure that helped enable him to plead fully and fairly. Accepting that completion of disclosure is not a necessary pre-condition for the first reasonable opportunity to plead, citing Glassie v R, the Judge held at [40]:
“… the implications of pleading guilty to manslaughter without medical evidence of the cause of death is not an informed opportunity.”
Third — and this is the practical holding — because the pathologist’s evidence arrived late, the Judge concluded at [41] that “trial’s milestones are not directly material to determination of your first reasonable opportunity to plead”.
The clock did not start running until the report arrived.
That did not deliver the full 25 per cent. Once the report was disclosed, the next milestone was the first trial callover. Mr Tumaialu did not plead there. He pleaded at the one after, so the Judge applied 20 per cent.
What to take from it
Late disclosure displaces the milestones. Where the Crown discloses the evidence establishing an essential element after the early milestones have passed, the table does not fix the ceiling. Run item 1 and s 9K(a) together.
The displacement is not open-ended. Once the enabling material lands, you will likely be required to plead at the next milestone to keep the maximum discount.
Document when you received disclosure. Section 9K(a) is a factual inquiry. Note the date each substantive item of disclosure is received and what it enabled.
Use s 9J. The court must state how the scale was applied and give reasons for any departure.
Check commencement. If any part of the offending predates 29 June 2025, the old law applies and Hessell governs unmodified.