A Timaru police officer who punched a handcuffed teenager in the back of a patrol car has been discharged without conviction.
The Christchurch District Court heard that 38-year-old Marcus Dominey was spat at and taunted by the teenager when the assault occurred in 2014.
Dominey, who has been an officer since 2002 but was stood down from his role earlier this year, was ordered to pay $500 to Women's Refuge and will face disciplinary action by the police.
In court, Judge Raoul Neave said the behaviour of the teen Dominey was arresting was unpleasant and provocative.
However, Judge Neave said police are in a privileged position and are expected to behave and show restraint.