Jury 'must be sure' Hayden Tasker had murderous intent when killing police officer Lyn Fleming, trial told

Hayden Donald Jason Tasker.

High Court jurors have been told they need to be sure the man who killed a Nelson police officer had murderous intent when he drove at her to find him guilty of murder.

Senior Sergeant Lyn Fleming and Senior Sergeant Adam Ramsay were on foot patrol in Buxton Square in the early hours of New Year's Day last year when they were hit by a car driven by Hayden Tasker.

Tasker, 33, was on trial in Christchurch for murdering Fleming and seriously injuring Ramsay. The jury retired to consider its verdict shortly before 12.30pm on Monday.

Tasker's defence argued he was drunk and depressed and crashed into the officers in a failed attempt to take his own life.