A 10.5cm deep wound on Flaxmere man Kelly Donner's neck would have caused his death within three to five minutes, a High Court jury has been told.
Fourteen-year-old Haami Hanara, has pleaded not guilty to murdering Donner and is on trial in the High Court in Napier before Justice Peter Churchman, and a jury of seven women and five men.
The trial started on Monday and is expected to last two weeks.
The Crown alleges Hanara fatally stabbed Donner, 40, after an argument over a torch in the Flaxmere Tavern carpark on March 4.
Forensic pathologist Dr Thambirajah Balachandra gave evidence this morning that a cut to Donner's carotid artery would have indicated the injury was unsurvivable without immediate medical treatment.