The police watchdog says the placement of an officer's knee on the side of a youth's head during an arrest was unjustified.
The incident took place in Upper Hutt in January last year after a car tried to evade an alcohol checkpoint.
The car pulled into a driveway, where police spoke to a youth who was found to have stolen the car and was driving while disqualified.
A complaint was subsequently lodged alleging the youth was punched in the face, thrown to the ground, and that officers failed to listen when he told them he was having difficulty breathing.
But the Independent Police Conduct Authority (IPCA) has found the use of force to take the youth to the ground following his arrest was justified and proportionate.