KEY POINTS:
A police officer was knocked unconscious after being head butted in the face.
The attack left the officer with concussion, a broken nose and a broken tooth.
The 51 year-old constable and his partner from Manukau had been trying to arrest a man involved in a high-speed car crash when the attack happened in Waiuku last night.
A 20 year-old Waiuku man was eventually arrested after back-up was called for.
He is due to appear at the Pukekohe District Court today to face charges including serious assault, resisting arrest and driving offences.
- NZ HERALD STAFF
