Police allege Hemana then challenged the victim to a fight and started to threaten him. He then got back in the car and left.
The victim got in his own vehicle and followed Hemana and the youth. He hoped to get their licence plate details to give police, and followed them at a safe distance to Parakai.
The pair stopped at a bottle store and the victim attempted to use his cellphone to photograph their car.
Hemana and the youth spotted the victim and ran at him. It is alleged Hemana was brandishing a golf club which he used to repeatedly smash into the front windscreen of the victim's car.
The victim ran away, fearing for his safety, however Hemana and the youth, armed with a glass alcohol bottle, chased him.
He hid behind a pole to avoid being hit, and told police both of the alleged attackers tried to strike him with their respective weapons.
They then ran away, and the victim who was not injured, contacted police.
The police later found the 17-year-old drinking with relatives, but Hemana is yet to be located. He has been charged with assault with a weapon and intentional damage and appeared in the Waitakere District Court this week.
Police are appealing to anyone who knows where Hemana is to contact them, or for the 19-year-old to hand himself in.
If you can help, contact the Helensville police on 09 4208967 or if you want to provide information anonymously ring Crimestoppers 0800 555 111.
