The incident occured close to the Pelham Arms in Gravesend
The police car collided with a silver BMW in Gravesend, Kent, at the junction of Old West Road and Pelham Road.
The officer was taken to hospital although their injuries are not thought to be life threatening.
The collision, which happened at around 4pm on Sunday afternoon, also left BMW driver with minor injuries.
Police are questioning a 26-year-old man from Northfleet who has been arrested on suspicion of drink-driving.
Anyone with information is urged to call the appeal line on 01622 798538 quoting reference 29-0746.
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