"Fearing for his safety, the officer fired at the offending driver's car, hitting the rear window. The occupant of the first car then got into the second car and both offenders fled in that car."
The car the offenders fled in is a Subaru Impreza, registration number ASY550.
It was originally red in colour but has been spray-painted black and was last seen heading towards Thames on State Highway 25.
Police this afternoon said Hikuai Settlement Rd, at the intersection of SH25, will be closed for about an hour to allow their investigations to take place.
Meanwhile, Bird said police were now appealing for any sightings of the car since 10pm last night, and would also like to hear from anyone who has information which will help us locate the two offenders."
Anyone with information is urged to phone Waikato Police on 07 858 6200. Information can also be provided anonymously via Crimestoppers on 0800 555 111.